ESGL Strengthens IP Portfolio with Provisional Patent Filing for Commercialized Precious Metal Recovery Technology

SINGAPORE, Oct. 08, 2025 (GLOBE NEWSWIRE) -- ESGL Holdings Limited (NASDAQ: ESGL), a leading carbon neutral, innovative enviro-tech company regenerating industrial waste into circular products, through its subsidiary Environmental Solutions Asia Pte Ltd (“ESA”), has filed a patent application (reference number 10202502909X) with the Intellectual Property Office of Singapore (IPOS), to protect its proprietary precious-metal recovery technology designed for treating acidic waste streams. The provisional paten ...