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5 April 2023

Light Science Technologies Holdings plc

(the "Company")

Posting of Circular

Light Science Technologies Holdings plc (AIM: LST) announces that, further to its announcement of 4 April 2023 under RNS number 2433V, the Circular (including the Notice of General Meeting) to Shareholders in relation to the proposed Fundraising and Retail Offer has been posted to Shareholders and is available on the Company's website https://lightsciencetechnologiesholdings.com/investors/

Unless otherwise defined, capitalised terms used in this announcement have the same meanings as ascribed to them in the Company's announcement of 4 April 2023 under RNS number 2433V.