Pursuant to a resolution of the directors dated Jan. 30, 2026, the company has changed its name as follows. There is no consolidation of capital.

Effective at the opening on Tuesday, April 28, 2026, the common shares of Vector Science and Therapeutics Corp. will commence trading on the TSX Venture Exchange, and the common shares of Opensesame Acquisition Corp. will be delisted.

Capitalization:  unlimited shares with no par value of which 153,259,380 shares are issued and outstanding

Escrow:  60.35 million common shares are subject to a TSX Venture Exchange escrow agreement

Transfer agent:  Computershare Investor Services Inc.

Trading symbol:  PAIN (new)

Cusip No.:  92244M 10 4 (new)

The company is classified as a technology and life science company (NAICS No. 33911).