Japan-based Metaplanet Inc. (OTC:MTPLF) is now the world's second-largest corporate holder of Bitcoin (CRYPTO: BTC) after reporting a fresh purchase of 1,000 BTC on Monday. ‘Asia's Strategy' Races Ahead The Tokyo-headquartered company bought 1,000 BTC in the third quarter, raising its total holdings to 44,000 BTC, worth $3.7 billion, as of Sept.