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.
Analyze the relationship between 'ZTE' and 'Shenzhen' within the context of the input sentence.
Options: chief executive officer, headquarters location, owner of, creator