Refer to the input text as context and select the correct relationship between 'ZTE' and 'Shenzhen' from the available options.
Options: headquarters location, chief executive officer, owner of, 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