Take context from the input text and decide on the accurate relationship between 'ZTE' and 'Shenzhen' from the options provided.
Options: headquarters location, owner of, chief executive officer, creator

The MOU, signed in Shenzhen by Too Tian Jen, Chief Technology Officer of U Mobile, and Steven Ge, Managing Director of ZTE Malaysia, also covers collaboration between the two companies on research and development of 5G technologies, in addition to Pre5G.
headquarters location