China-based Tsinghua Unisplendour Co. Ltd. (UNIS) announced that it is investing US$3.8 billion in the US data storage company Western Digital to become the biggest shareholder with a 15% stake, reported China's Xinhua Finance Agency on October 1. The transaction will be carried out by UNIS Union Information System Ltd., a wholly owned subsidiary of UNIS in Hong Kong, which will buy around 40 million issued shares of Western Digital for US$92.50 apiece. The investment is expected to strengthen Tsinghua Holdings' deployment in data storage and networking operations on top of its previous partnership with HP and Microsoft. The deal, which still needs to be approved by regulatory authorities, is expected to be finalized by the end of 2015.