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.
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