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Renewables & cleantech

Biome Technologies slumps 60% after revealing plans to join the AIM exodus

Shares in Biome Technologies PLC (AIM:BIOM) slumped 60% to 1.5p on Friday after saying it would be joining the exodus of companies from AIM.

The bioplastics and radio frequency systems specialist told a familiar story, citing limited access to capital, high costs of maintaining the listing, low liquidity, and a share price that doesn’t reflect the company’s true value as reasons to head for the escape hatch.

Biome is one of around a dozen companies in the last month alone that have pulled the ripcord, opting for a quieter, more flexible existence as a privately owned and run company.

So far in 2025, the outflow shows no signs of abating, keeping pace with last year, when around 90 businesses left the public market.