Archimedes Tech SPAC Partners II Co. (Nasdaq: ATII) ("Archimedes II" or "ATII"), a publicly traded special purpose acquisition company, today announced that its registration statement on Form S-4 (the "Registration Statement") in connection with its previously announced proposed business combination with Forge Nano, Inc. ("Forge Nano"), a technology company pioneering domestic battery and semiconductor innovations, was declared effective by the U.S. Securities and Exchange Commission ("SEC") on September 22, 2026. The Registration Statement provides important information about Archimedes II, Forge Nano, the combined company and the business combination.

If the transaction is consummated, the combined company expects to be publicly listed on Nasdaq under the symbol "NANO" following the closing of the business combination. The combined company ("Pubco") is expected to operate under the name "Forge Nano Holdings, Inc."

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