4 November 2022

TRITAX BIG BOX REIT PLC

(the "Company")

APPOINTMENT of NEW SENIOR independent DIRECTOR AND changes to composition of BOARD COMMITTEEs

Following a review of the Board and Committee composition, the Board of the Company is pleased to announce that Karen Whitworth is taking over the role of the Senior Independent Director from Alastair Hughes with immediate effect. Alastair will remain on the Board as a Non-Executive Director.

Karen has been a Non-Executive Director of the Company since October 2019 and is a member of the Nomination, Audit & Risk and Management Engagement Committees.

In addition, Elizabeth Brown will replace Karen as the Chair of the Management Engagement Committee and therefore, effective immediately, the membership of each Board Committee is as follows:

The Terms of Reference for each Committee are available on the Company's website and on request from the Company Secretary.

In accordance with the Listing Rules, there is no further information required to be disclosed pursuant to LR9.6.11R.

Aubrey Adams, OBE, FCA, FRICS, Chairman of Tritax Big Box REIT plc, commented:

"The Board would like to thank Alastair for his invaluable contribution in his capacity as the Senior Independent Director over the past year and looks forward to working with Karen and Elizabeth in their new roles."

FOR FURTHER INFORMATION, PLEASE CONTACT:

The Company's LEI is: 213800L6X88MIYPVR714

NOTES:

Tritax Big Box REIT plc (ticker: BBOX) is the largest listed investor in high-quality logistics warehouse assets and controls the largest logistics-focused land platform in the UK. BBOX is committed to delivering attractive and sustainable returns for Shareholders by investing in and actively managing existing built investments and land suitable for logistics development, The Company focuses on well-located, modern logistics assets, typically let to institutional-grade tenants on long-term leases with upward-only rent reviews and geographic and tenant diversification throughout the UK. The Company seeks to exploit the significant opportunity provided by the imbalance between strong occupational demand and constrained supply of modern logistics real estate   in the UK.

The Company is a real estate investment trust to which Part 12 of the UK Corporation Tax Act 2010 applies (REIT), is listed on the premium segment of the Official List of the UK Financial Conduct Authority and is a constituent of the FTSE 250, FTSE EPRA/NAREIT and MSCI indices.

Further information on Tritax Big Box REIT is available at www.tritaxbigbox.co.uk