Quantum Solutions (2338), an AI-focused company that is building an ether ETH$3,898.75 treasury, said its Hong Kong subsidiary, GPT Pals Studio, bought 2,000.13 ether ETH$3,898.75 for $7.85 million on Oct 21. The Tokyo-based company said it now holds 3,865.8 ETH valued at about $15.1 million, with an average cost of $4,101 per ETH. The purchase…