Group 1 - The core point of the article is that BrainCo, a leading company in brain-computer interface technology, is seeking new financing with a valuation exceeding $1.3 billion and is preparing for a potential IPO in Hong Kong or China [1] - BrainCo was established in 2015 and is recognized as the first Chinese team selected for Harvard University's innovation lab, aiming to become a global leader in non-invasive brain-computer interface solutions [1] - The company is noted for producing the world's first mass-produced brain-controlled bionic hand and is the only company in mainland China to have received FDA certification for its smart bionic hand [1] Group 2 - BrainCo has undergone several rounds of financing, with investors including HanTan Investment, Everbright Holdings, Dexun Investment, Dinghui Investment, and China Electronics Huada Technology [3]