German Siemens and ThyssenKrupp may sell relevant core technology to China, which owns the first commercially operated maglev line.
German Siemens is a very popular brand
( z1 brand :domain ( z2 company :name ( z3 name :op "Siemens" ) :mod ( z4 country :name ( z5 name :op "Germany" ) ) ) :ARG1-of ( z6 popular :degree ( z7 very ) ) )