FORM 51-102F3
MATERIAL CHANGE REPORT
| Item 1. | Name and Address of Company |
Glass House Brands Inc. (the "Company")
3645 Long Beach Boulevard
Long Beach, California 90807
| Item 2. | Date of Material Change |
September 29, 2026
| Item 3. | News Release |
The news release disclosing the material change was disseminated by the Company on September 29, 2026 through GlobeNewswire and is available on SEDAR+ (www.sedarplus.ca) under the Company's issuer profile.
| Item 4. | Summary of Material Change |
On September 29, 2026, the Company announced the planned retirement of Mark Vendetti as the Company's Chief Financial Officer ("CFO"). Mr. Vendetti will continue to serve as CFO through March 31, 2027, and the Company has initiated a search for his successor.
| Item 5. | Full Description of Material Change |
On September 29, 2026, the Company announced the planned retirement of Mark Vendetti as CFO. Mr. Vendetti, who joined the Company as CFO in 2021, will continue to serve as CFO through March 31, 2027. The Company has initiated a search for Mr. Vendetti's successor.
| Item 6. | Reliance on subsection 7.1(2) of National Instrument 51-102 |
Not applicable.
| Item 7. | Omitted Information |
Not applicable.
| Item 8. | Executive Officer |
Benjamin Vega
General Counsel and Corporate Secretary
Tel: (562) 264-5078
| Item 9. | Date of Report |
October 9, 2026.