CoStone Capital is a Shenzhen-based venture capital and private equity firm investing across angel, VC, PE, M&A and private placement strategies. It focuses on hard technology, emerging industries, life sciences and health, with portfolio activity in AI, semiconductors, robotics and other deep-tech sectors. The firm invests across China, Hong Kong and the United States, including cross-border China-U.S. technology companies, and is relevant for founders seeking institutional capital from early stage through broader private-market strategies.