DUCTZ

ITEM 8: RESTRICTIONS ON SOURCES OF PRODUCTS AND SERVICES 8.1 Required Purchase of Initial Package and Kick-Start Marketing Services You must purchase the Initial Package or Modified Initial Package of certain equipment and small tools package for HVAC and air duct cleaning and supplies safety equipment, marketing materials, trademarked office supplies and apparel, Click Safety Training, Training and Certification, Kick Start Marketing, CareerPlug Pro, a Convention Fee Allowance, and supplies as described and listed in Exhibit B to the Franchise Agreement. The items included in the Initial Package will change to reflect the changing needs of the DUCTZ Business in accordance with System procedures, and changes in suppliers and/or product specifications. The Initial Package may be modified or waived for Conversion Franchises, but only with our prior written approval. We retain the right to derive revenue or other material consideration from required purchases and leases of products and services. Some of our officers have an ownership interest in our affiliates BELFOR, DRIPLOC, CDI, and BHI. There are no other suppliers in which any of our officers owns an interest at this time, although they reserve the right to do so in the future. The marketing materials and trademarked office supplies that are included in the Initial Package are shipped, F.O.B. from our approved supplier(s) which include Oklahoma City, OK and Logan, UT. You must purchase the entire Initial Package.

33 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 We will prepare on an annual basis, within 120 days of the end of the fiscal year, and make available to you upon written request, a statement of contributions and expenditures for the Brand Marketing Fund. The Brand Marketing Fund does not have to be independently audited. There are currently no requirements for participation in an advertising fund or any local advertising cooperatives, though we reserve the right to establish an advertising fund or advertising cooperatives in the future. 11.7 Computer Software, Internet, and Systems We have developed the DUCTZ Software, which consists of software program(s) which you must use to maintain customer records, bid on jobs, create estimates and operate the DUCTZ Business system. The DUCTZ Software is included in your weekly Technology Fee, which is currently $45 per week. You are required to use our then-current designated accounting software, which is currently QuickBooks Online. In addition, you are required to follow our specified chart of accounts. We will have automatic password access to your financial reports on this system. You may not utilize any other accounting or reporting software that is not approved by us. We have the right to change these requirements at our discretion. We shall have the right to specify or require that certain brands, types, makes, and/or models of communications, computer systems, and hardware be used by you, including without limitation: (i) a compatible “back office” computer system that complies with our standards and specifications; (ii) a custom and proprietary point of sale system (the “POS System”), if we make such a POS System part of our proprietary operating system in the future; (iii) printers and other peripheral hardware or devices; (iv) archival back-up systems; (v) Internet access mode and speed; and (vi) physical, electronic, and other security systems (collectively, the “Computer System”). Currently, your Computer System must include a fiber-optic internet or other high speed internet or cable modem high-speed Internet connection located at your Office Site that meets the requirements of the System Standards and for handling of our then-current DUCTZ Software. We estimate the cost of the computer system to be approximately $1,500. Computer specifications for hardware and Internet connectivity are provided in Sections 2.H and 2.I of the Franchise Agreement. We have the right to independently access the information generated and stored in the Computer System and/or the DUCTZ Software. We shall have the right, but not the obligation, to develop or designate: (i) computer software programs you must use in connection with any component of the Computer System, including the DUCTZ Software (the “Required Software”), which you shall install at your own expense; (ii) updates, supplements, modifications, or enhancements to the Required Software, which you shall install at your own expense; (iii) the tangible media upon which you record data; and (iv) the database file structure of the Computer System. You will be responsible for the payment of all fees associated with the Required Software (including the DUCTZ Software), Computer System and POS System. At our request, you shall purchase or lease, and thereafter maintain, the Computer System, DUCTZ Software, and, if applicable, the Required Software. You agree to pay all fees associated with the use of DUCTZ Software and any other Required Software, which may be payable to us or our approved or designated suppliers. You expressly agree to strictly comply with our then- current standards and specifications for all items associated with your Computer System, DUCTZ Software and any other Required Software, including any security software. You agree, at your own expense, to keep your Computer System in good maintenance and repair and install such upgrades, additions, changes, modifications, substitutions, and/or replacements to your 34 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 Computer System or Required Software as we direct from time to time in writing. You agree that your compliance with these requirements shall be at your sole cost and expense. We may require that your Computer System be programmed to automatically transmit data and reports about the operation of the DUCTZ Business to us. We shall also have the right to, at any time without notice, electronically connect with your Computer System to monitor or retrieve data stored on the Computer System or for any other purpose we deem necessary. There are no contractual limitations on our right to access the information and data on your POS System, DUCTZ Software, and Computer System. You shall deliver to us all access codes, static Internet protocol (“IP”) addresses and other information to facilitate our access to the data described in this Section within 30 days of opening the DUCTZ Business. You must obtain the computer hardware necessary to implement the DUCTZ Software, and comply with all specifications and standards prescribed by us regarding the DUCTZ Software as provided in the Manuals. We reserve the right to create additional proprietary software programs, which you must use in connection with the DUCTZ Business. The Require Software, including the DUCTZ Software, will be our proprietary product, and the information collected therefrom will be deemed our confidential information. You are required to participate in any System-wide computer network, intranet system, or extranet system that we implement and may be required by us to use such computer network, intranet system, or extranet system to, among other things: (i) submit your reports due under the Franchise Agreement to us online; (ii) view and print portions of the Manuals, including any updates or modifications thereto; (iii) download approved local advertising materials; (iv) communicate with us and other DUCTZ franchisees; and (v) to complete any initial or ongoing training. You agree to use the facilities of any such computer network, intranet system or extranet system in strict compliance with the standards, protocols, and restrictions that we include in the Manuals, including those related to the encryption of confidential information and prohibitions against the transmission of libelous, derogatory or defamatory statements. As technology advances, you may be required to upgrade your hardware to meet changing software requirements as we deem necessary. The DUCTZ Software is web-based and we do not charge you for software updates and upgrades. We will require you to upgrade your computer hardware, but no more than two times during the initial term. You promise to subscribe to, maintain, and utilize a fiber- optic internet or other high speed internet, cable, or satellite high speed Internet connection and email network account with independent suppliers which periodically we approve. If you do not receive written approval within ten days of our written receipt of your request, such supplier will be considered disapproved. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business-related correspondence. You also promise to use, subscribe to, and pay for, as directed by us, a customized website connected to our website and managed by our website provider. You may not attempt to redirect the customized website. You also promise to subscribe to, maintain, and utilize the phone model, type and provider that we designate as well as the phone service from the company we designate. As technology advances and new discoveries are made, we have the right to require that you use other technological items, as well as to designate the specific companies, models and/or types that you must use for these technological services. You also promise to use, subscribe to, and pay for, as directed by us, a customized website connected to our website and managed by our website provider. You may not attempt to redirect any traffic on the customized website. You may not implement a website or URL for the DUCTZ 35 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 Business either yourself or through a third party provider. We have sole discretion and control over the website (including timing, design, contents and continuation). We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ Businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. You agree to establish and maintain a separate profile, page or other presence on social media in connection with the DUCTZ Business in accordance with the System Standards. Prior to establishing such social media page(s), you are required to obtain our prior written approval of the content to be posted on such social media page(s). If such approval is granted by us, you must: (i) establish and operate such social media page(s) in accordance with System standards and any other policies we designate in the Manuals or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). We recommend, but do not require, that you update the social media page(s) at least monthly. We shall have the right to modify the provisions of this Item. We may use a portion of the Brand Marketing Fund contributions or the weekly usage/support/upgrade fee to pay or reimburse ourselves for the costs incurred in connection with the development, maintenance and update of our website. 11.8 Telephone Listings At our discretion, we may provide you with a number to use as the primary business number for your DUCTZ Business. As part of your local marketing, this number must be dedicated to your DUCTZ Business. You must maintain a 24-hour answering system on this business number, use an approved script for answering calls, and you must continually list the DUCTZ Business in the primary Internet and telephone directory servicing the Territory and, at a minimum, to maintain a trademark listing advertising your Business in the primary directory servicing the Territory. We currently offer a service through which selected phone calls to our toll-free phone number will be forwarded to you or us. In the offering of this service, we will use commercially reasonable efforts to maintain this service 24 hours per day, seven days per week, subject to acts of God or circumstances beyond our reasonable control, including power outages and the unavailability of telephone services. In the phone routing process, we use commercially reasonable efforts to route calls from prospective customers requesting service in the Territory to you. We do not guarantee that every phone call requesting service in the Territory will be routed to you. We reserve the right to modify or terminate this service at any time, in our sole discretion, including, without limitation, the right to require that all customer calls be directed through our toll-free line or any other telephone number we designate. Currently, the cost of this toll-free number and forwarding call is including in the Technology Fee. (Section 2.I of the Franchise Agreement). 11.9 Reference Guides Upon request, you may view the Manuals at our offices in Ann Arbor, MI or elsewhere as arranged, before you purchase the DUCTZ Business. Before your review, you will sign our then current form of confidentiality and non-disclosure agreement (Exhibit A-3 of the Disclosure Document). 36 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 The Manuals will contain mandatory and suggested specifications, standards, operating procedures, and rules that we prescribe periodically for the operation of a DUCTZ Business, and information on your other obligations under the Franchise Agreement and related agreements. We may modify the Manuals periodically to reflect changes in the System standards. You must keep your copy of the Manuals current and in a secure location in the principal office of the DUCTZ Business. If there is a dispute over its contents, the master copy of each of the Manuals that we maintain at our principal office will be controlling. You may not at any time copy, duplicate, record, or otherwise reproduce any part of the Manuals. If all or any of the Manuals are lost, destroyed, or significantly damaged, you promise to obtain replacements at our then applicable charge. The Manuals are specifically incorporated by reference into the Franchise Agreement, and you must comply with the Manuals as an essential aspect of your obligations under the Franchise Agreement. Failure to substantially comply with the Manuals may be considered a breach of the Franchise Agreement. The following is the current table of contents of our Manual – DUCTZ Service Technician Training Manual, as of the date of this Disclosure Document, though we reserve the right to modify this at any time: Topic Number of Pages Introduction 9 Understanding HVAC Basics 4 General Principles of HVAC Cleaning 20 DUCTZ Procedures for Cleaning Residential Air Duct Systems 31 History of Duct Cleaning 4 Principles of Heating Ventilation and Air Conditioning Systems 6 Mechanical System History 7 Total Pages 81 The following is the current table of contents of our Manual – Tools and Equipment, as of the date of this Disclosure Document, though we reserve the right to modify this at any time: Topic Number of Pages Hole Cutting Tools 3 Drill Motors 3 Duct Entry and Closure Tools 7 Hand Tools 5 Electrical 3 Duct Cleaning Brushes, Cable Drives, Rods 6 Miscellaneous Hand Tools 5 Vacuum Equipment 8 Air Operated Equipment 4 Observation Investigation Devices 2 Total Pages 46 11.10 Site Approval You must also select your business office site within the Designated Office Territory (as previously defined as the “Office Site”), and we must approve such Office Site in our sole discretion. You may not locate your office outside of the DOT without our express written consent. If your Office Site is located outside of the DOT (pursuant to our prior permission), you agree that if a DUCTZ franchisee purchases the Territory where your Office Site is located, or if a Company Store is opened, you will move the location of your Office Site to another site approved in writing 37 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 by us, unless you have obtained written authorization from DUCTZ, as well as from the new DUCTZ franchisee or DZNA. 11.11 Jumpstart Initial Training You must successfully complete our Jumpstart Initial Training program (Section 3.A of the Franchise Agreement) within one month of signing the Franchise Agreement, before attending Business Management and Technical Operations Training (as defined below) and before the opening of the DUCTZ Business. Additional persons employed by you may attend on a space available basis, contingent upon our receipt of our training fee to offset the expenses we incur. All attendees who are not a party to the Franchise Agreement must sign our prescribed form of confidentiality and non-disclosure agreement (Exhibit A-3 of the Disclosure Document). You must pay for your own and your employees’ travel and living expenses while attending the Business Management and Technical Operations training program. During the Jumpstart Initial Training program, with guidance from our training team, along with training manuals and online modules, you must prepare a comprehensive financial plan, review the Manuals, complete a territory review, coordinate your initial advertising program, acquire proper insurance, select and lease office space, and acquire all permits, licenses, and approved vehicles. All Jumpstart Initial Training activities are to be completed before attending Business Manager and Technical Operations Training and before opening of the DUCTZ Business, and are conducted in your hometown with assistance from our home office staff. You begin Jumpstart Initial Training immediately upon your execution of the Franchise Agreement and payment of all initial fees. During Jumpstart Initial Training, we will schedule Business Manager and Technical Operations Training for you to attend. Business Manager and Technical Operations Training sessions may be offered as many times a year as is necessary. Final confirmation of your scheduled classroom training may be contingent upon your successful completion the Jumpstart Initial Training. After you return from the Business Manager and Technical Operations Training you are ready to open for business. 11.12 Business Manager and Technical Operations Training Before you begin operating the DUCTZ Business and after you have completed Jumpstart Initial Training, we will furnish business manager and technical operations training (the “Business Manager and Technical Operations Training”) to the Managing Owner or, if applicable, the Designated Manager, at no additional fee. The Managing Owner or, if applicable, the Designated Manager must complete the Business Manager and Technical Operations Training to our satisfaction and failure to do so will result in the termination of the Franchise Agreement. The Business Manager and Technical Operations Training may not commence until you have paid all fees due to us. The Business Manager and Technical Operations Training will last up to 7 days in duration in Ann Arbor, Michigan, at our headquarters, the BFG training center, or another location designated by us. Business Manager and Technical Operations Training sessions may be offered as many times a year as is necessary. You will be responsible for all travel and living expenses that you and your employees/owners incur for this Business Manager and Technical Operations Training. Our primary training program instructor is Tom Yacobellis. Mr. Yacobellis has forty-three (43) years of experience in the HVAC industry and nineteen (19) years experience with us.

23 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 8.5 Purchase Arrangements Aside from certain intangible benefits associated with group buying, you receive no material franchise benefits (for example, the award of additional franchises or a renewal term) for using an approved supplier. 8.6 Email and Website You must also maintain, on your DUCTZ business computer, an electronic mail account that must enable you to receive and send electronic mail and transfer computer files with us. You must also maintain a fiber-optic, , cable, satellite or other high speed internet connection. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business related correspondence. We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ franchised businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. Except as approved in advance in writing by us, you must not establish or maintain a separate website, splash page, profile, including Google MyBusiness Profile, or other presence on the Internet, or otherwise advertise on the Internet or any other public computer network in connection with the DUCTZ Business, including any profile on Facebook, X formerly known as Twitter, LinkedIn, YouTube, Pinterest, Instagram, or any other social media and/or networking site. If such approval is granted by us, you must: (i) establish and operate such World Wide Web or Internet site in accordance with System Standards and any other policies we designate in the DUCTZ System Standards or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). 8.7 Insurance Before attending either the Business Manager and Technical Operations Training, you promise to purchase and maintain in full force and effect throughout the term of the Franchise Agreement and at your expense, insurance protecting you, your employees, and us, our officers, and our employees, against loss, liability, fire, personal injury, death, property damages, or theft arising from, or occurring in connection with, the operation and promotion of the DUCTZ Business as specified in detail in the Franchise Agreement or otherwise in writing from us, including, but not limited to, a commercial general liability policy with limits of $2,000,000 general aggregate, $2,000,000 products and completed operations aggregate, $1,000,000 personal and advertising injury limit, and $1,000,000 per occurrence, automobile liability insurance with a combined single limit of at least $1,000,000, statutorily required workers’ compensation and employers’ liability insurance with limits of at least $500,000 by accident, $500,000 by disease and $500,000 policy limit; or the minimum limit required by your state, whichever is higher, Umbrella Liability Insurance with a limit of at least $2,000,000 per occurrence and aggregate the policy shall list the commercial general liability, automobile liability and workers’ compensation/employers’ liability policies as scheduled underlying policies and any other insurance as required by any state, county, local, or other municipal insurance requirements. We may modify the types and amounts of insurance you are required to purchase as we deem appropriate in our reasonable discretion. You acknowledge and agree that (a) the insurance you will maintain reflects the minimum amounts of coverage we require, (b) these minimums are not meant to reflect the actual needs you may have,

23 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 8.5 Purchase Arrangements Aside from certain intangible benefits associated with group buying, you receive no material franchise benefits (for example, the award of additional franchises or a renewal term) for using an approved supplier. 8.6 Email and Website You must also maintain, on your DUCTZ business computer, an electronic mail account that must enable you to receive and send electronic mail and transfer computer files with us. You must also maintain a fiber-optic, , cable, satellite or other high speed internet connection. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business related correspondence. We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ franchised businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. Except as approved in advance in writing by us, you must not establish or maintain a separate website, splash page, profile, including Google MyBusiness Profile, or other presence on the Internet, or otherwise advertise on the Internet or any other public computer network in connection with the DUCTZ Business, including any profile on Facebook, X formerly known as Twitter, LinkedIn, YouTube, Pinterest, Instagram, or any other social media and/or networking site. If such approval is granted by us, you must: (i) establish and operate such World Wide Web or Internet site in accordance with System Standards and any other policies we designate in the DUCTZ System Standards or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). 8.7 Insurance Before attending either the Business Manager and Technical Operations Training, you promise to purchase and maintain in full force and effect throughout the term of the Franchise Agreement and at your expense, insurance protecting you, your employees, and us, our officers, and our employees, against loss, liability, fire, personal injury, death, property damages, or theft arising from, or occurring in connection with, the operation and promotion of the DUCTZ Business as specified in detail in the Franchise Agreement or otherwise in writing from us, including, but not limited to, a commercial general liability policy with limits of $2,000,000 general aggregate, $2,000,000 products and completed operations aggregate, $1,000,000 personal and advertising injury limit, and $1,000,000 per occurrence, automobile liability insurance with a combined single limit of at least $1,000,000, statutorily required workers’ compensation and employers’ liability insurance with limits of at least $500,000 by accident, $500,000 by disease and $500,000 policy limit; or the minimum limit required by your state, whichever is higher, Umbrella Liability Insurance with a limit of at least $2,000,000 per occurrence and aggregate the policy shall list the commercial general liability, automobile liability and workers’ compensation/employers’ liability policies as scheduled underlying policies and any other insurance as required by any state, county, local, or other municipal insurance requirements. We may modify the types and amounts of insurance you are required to purchase as we deem appropriate in our reasonable discretion. You acknowledge and agree that (a) the insurance you will maintain reflects the minimum amounts of coverage we require, (b) these minimums are not meant to reflect the actual needs you may have,

23 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 8.5 Purchase Arrangements Aside from certain intangible benefits associated with group buying, you receive no material franchise benefits (for example, the award of additional franchises or a renewal term) for using an approved supplier. 8.6 Email and Website You must also maintain, on your DUCTZ business computer, an electronic mail account that must enable you to receive and send electronic mail and transfer computer files with us. You must also maintain a fiber-optic, , cable, satellite or other high speed internet connection. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business related correspondence. We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ franchised businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. Except as approved in advance in writing by us, you must not establish or maintain a separate website, splash page, profile, including Google MyBusiness Profile, or other presence on the Internet, or otherwise advertise on the Internet or any other public computer network in connection with the DUCTZ Business, including any profile on Facebook, X formerly known as Twitter, LinkedIn, YouTube, Pinterest, Instagram, or any other social media and/or networking site. If such approval is granted by us, you must: (i) establish and operate such World Wide Web or Internet site in accordance with System Standards and any other policies we designate in the DUCTZ System Standards or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). 8.7 Insurance Before attending either the Business Manager and Technical Operations Training, you promise to purchase and maintain in full force and effect throughout the term of the Franchise Agreement and at your expense, insurance protecting you, your employees, and us, our officers, and our employees, against loss, liability, fire, personal injury, death, property damages, or theft arising from, or occurring in connection with, the operation and promotion of the DUCTZ Business as specified in detail in the Franchise Agreement or otherwise in writing from us, including, but not limited to, a commercial general liability policy with limits of $2,000,000 general aggregate, $2,000,000 products and completed operations aggregate, $1,000,000 personal and advertising injury limit, and $1,000,000 per occurrence, automobile liability insurance with a combined single limit of at least $1,000,000, statutorily required workers’ compensation and employers’ liability insurance with limits of at least $500,000 by accident, $500,000 by disease and $500,000 policy limit; or the minimum limit required by your state, whichever is higher, Umbrella Liability Insurance with a limit of at least $2,000,000 per occurrence and aggregate the policy shall list the commercial general liability, automobile liability and workers’ compensation/employers’ liability policies as scheduled underlying policies and any other insurance as required by any state, county, local, or other municipal insurance requirements. We may modify the types and amounts of insurance you are required to purchase as we deem appropriate in our reasonable discretion. You acknowledge and agree that (a) the insurance you will maintain reflects the minimum amounts of coverage we require, (b) these minimums are not meant to reflect the actual needs you may have,

23 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 8.5 Purchase Arrangements Aside from certain intangible benefits associated with group buying, you receive no material franchise benefits (for example, the award of additional franchises or a renewal term) for using an approved supplier. 8.6 Email and Website You must also maintain, on your DUCTZ business computer, an electronic mail account that must enable you to receive and send electronic mail and transfer computer files with us. You must also maintain a fiber-optic, , cable, satellite or other high speed internet connection. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business related correspondence. We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ franchised businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. Except as approved in advance in writing by us, you must not establish or maintain a separate website, splash page, profile, including Google MyBusiness Profile, or other presence on the Internet, or otherwise advertise on the Internet or any other public computer network in connection with the DUCTZ Business, including any profile on Facebook, X formerly known as Twitter, LinkedIn, YouTube, Pinterest, Instagram, or any other social media and/or networking site. If such approval is granted by us, you must: (i) establish and operate such World Wide Web or Internet site in accordance with System Standards and any other policies we designate in the DUCTZ System Standards or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). 8.7 Insurance Before attending either the Business Manager and Technical Operations Training, you promise to purchase and maintain in full force and effect throughout the term of the Franchise Agreement and at your expense, insurance protecting you, your employees, and us, our officers, and our employees, against loss, liability, fire, personal injury, death, property damages, or theft arising from, or occurring in connection with, the operation and promotion of the DUCTZ Business as specified in detail in the Franchise Agreement or otherwise in writing from us, including, but not limited to, a commercial general liability policy with limits of $2,000,000 general aggregate, $2,000,000 products and completed operations aggregate, $1,000,000 personal and advertising injury limit, and $1,000,000 per occurrence, automobile liability insurance with a combined single limit of at least $1,000,000, statutorily required workers’ compensation and employers’ liability insurance with limits of at least $500,000 by accident, $500,000 by disease and $500,000 policy limit; or the minimum limit required by your state, whichever is higher, Umbrella Liability Insurance with a limit of at least $2,000,000 per occurrence and aggregate the policy shall list the commercial general liability, automobile liability and workers’ compensation/employers’ liability policies as scheduled underlying policies and any other insurance as required by any state, county, local, or other municipal insurance requirements. We may modify the types and amounts of insurance you are required to purchase as we deem appropriate in our reasonable discretion. You acknowledge and agree that (a) the insurance you will maintain reflects the minimum amounts of coverage we require, (b) these minimums are not meant to reflect the actual needs you may have,

23 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 8.5 Purchase Arrangements Aside from certain intangible benefits associated with group buying, you receive no material franchise benefits (for example, the award of additional franchises or a renewal term) for using an approved supplier. 8.6 Email and Website You must also maintain, on your DUCTZ business computer, an electronic mail account that must enable you to receive and send electronic mail and transfer computer files with us. You must also maintain a fiber-optic, , cable, satellite or other high speed internet connection. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business related correspondence. We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ franchised businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. Except as approved in advance in writing by us, you must not establish or maintain a separate website, splash page, profile, including Google MyBusiness Profile, or other presence on the Internet, or otherwise advertise on the Internet or any other public computer network in connection with the DUCTZ Business, including any profile on Facebook, X formerly known as Twitter, LinkedIn, YouTube, Pinterest, Instagram, or any other social media and/or networking site. If such approval is granted by us, you must: (i) establish and operate such World Wide Web or Internet site in accordance with System Standards and any other policies we designate in the DUCTZ System Standards or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). 8.7 Insurance Before attending either the Business Manager and Technical Operations Training, you promise to purchase and maintain in full force and effect throughout the term of the Franchise Agreement and at your expense, insurance protecting you, your employees, and us, our officers, and our employees, against loss, liability, fire, personal injury, death, property damages, or theft arising from, or occurring in connection with, the operation and promotion of the DUCTZ Business as specified in detail in the Franchise Agreement or otherwise in writing from us, including, but not limited to, a commercial general liability policy with limits of $2,000,000 general aggregate, $2,000,000 products and completed operations aggregate, $1,000,000 personal and advertising injury limit, and $1,000,000 per occurrence, automobile liability insurance with a combined single limit of at least $1,000,000, statutorily required workers’ compensation and employers’ liability insurance with limits of at least $500,000 by accident, $500,000 by disease and $500,000 policy limit; or the minimum limit required by your state, whichever is higher, Umbrella Liability Insurance with a limit of at least $2,000,000 per occurrence and aggregate the policy shall list the commercial general liability, automobile liability and workers’ compensation/employers’ liability policies as scheduled underlying policies and any other insurance as required by any state, county, local, or other municipal insurance requirements. We may modify the types and amounts of insurance you are required to purchase as we deem appropriate in our reasonable discretion. You acknowledge and agree that (a) the insurance you will maintain reflects the minimum amounts of coverage we require, (b) these minimums are not meant to reflect the actual needs you may have,

23 © 2026 DUCTZ International, LLC Franchise Disclosure Document 2603 8.5 Purchase Arrangements Aside from certain intangible benefits associated with group buying, you receive no material franchise benefits (for example, the award of additional franchises or a renewal term) for using an approved supplier. 8.6 Email and Website You must also maintain, on your DUCTZ business computer, an electronic mail account that must enable you to receive and send electronic mail and transfer computer files with us. You must also maintain a fiber-optic, , cable, satellite or other high speed internet connection. You must use an email name that we have approved that will have “@DUCTZ.com” as its suffix for all business related correspondence. We may, but are not obligated to, create interior pages on the website(s) that contain information about the DUCTZ Business and other DUCTZ franchised businesses. If we do create such pages, we may require you to prepare all or a portion of the page for the DUCTZ Business, at your expense, using a template that we provide. All such information will be subject to our approval prior to posting. Except as approved in advance in writing by us, you must not establish or maintain a separate website, splash page, profile, including Google MyBusiness Profile, or other presence on the Internet, or otherwise advertise on the Internet or any other public computer network in connection with the DUCTZ Business, including any profile on Facebook, X formerly known as Twitter, LinkedIn, YouTube, Pinterest, Instagram, or any other social media and/or networking site. If such approval is granted by us, you must: (i) establish and operate such World Wide Web or Internet site in accordance with System Standards and any other policies we designate in the DUCTZ System Standards or otherwise in writing from time to time; and (ii) utilize any templates that we provide to you to create and/or modify such site(s). 8.7 Insurance Before attending either the Business Manager and Technical Operations Training, you promise to purchase and maintain in full force and effect throughout the term of the Franchise Agreement and at your expense, insurance protecting you, your employees, and us, our officers, and our employees, against loss, liability, fire, personal injury, death, property damages, or theft arising from, or occurring in connection with, the operation and promotion of the DUCTZ Business as specified in detail in the Franchise Agreement or otherwise in writing from us, including, but not limited to, a commercial general liability policy with limits of $2,000,000 general aggregate, $2,000,000 products and completed operations aggregate, $1,000,000 personal and advertising injury limit, and $1,000,000 per occurrence, automobile liability insurance with a combined single limit of at least $1,000,000, statutorily required workers’ compensation and employers’ liability insurance with limits of at least $500,000 by accident, $500,000 by disease and $500,000 policy limit; or the minimum limit required by your state, whichever is higher, Umbrella Liability Insurance with a limit of at least $2,000,000 per occurrence and aggregate the policy shall list the commercial general liability, automobile liability and workers’ compensation/employers’ liability policies as scheduled underlying policies and any other insurance as required by any state, county, local, or other municipal insurance requirements. We may modify the types and amounts of insurance you are required to purchase as we deem appropriate in our reasonable discretion. You acknowledge and agree that (a) the insurance you will maintain reflects the minimum amounts of coverage we require, (b) these minimums are not meant to reflect the actual needs you may have,