How it started
2005: Symantec acquires Veritas Software, manufacturer of information lifecycle management software
2007 (May): Huawei and Symantec sign an agreement for the establishment of a joint venture in order to provide end-to-end solutions in the domain of converging network, security, and storage and computing technologies.
2008 (February): Huawei Symantec was established.
2012 (March): Huawei acquires the 49% of shares held by the Symantec Corporation at a price of about 530 million U.S. dollars or 3.4 billion yuan.
From Wikipedia’s article on Huawei Symantec, shared under CC BY-SA 4.0.2