Nio, when contacted, denied it talked to Mercedes on a collaboration, calling it "untrue", without elaborating. Mercedes said in a separate response that there were no collaboration plans with Nio at the moment. Chinese EV companies may also be able to navigate potential trade barriers better by forging such tie-ups. Nio, whose investors include Chinese tech giant Tencent Holdings (0700.HK), has publicly called for more such tie-ups with established automakers. ($1 = 7.3127 Chinese yuan renminbi)Reporting by Zhang Yan and Brenda Goh; Additional reporting by Ilona Wissenbach in Frankfurt; Editing by Muralikumar AnantharamanOur Standards: The Thomson Reuters Trust Principles.

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Persons: William Li, Ola Kaellenius, Nio, Mercedes, Leapmotor, Elon Musk, Tesla, Nio's Li, Zhang Yan, Brenda Goh, Ilona Wissenbach, Muralikumar Organizations: HK, Mercedes, Benz, Nio, EV, Volkswagen, SAIC, Audi, VW's, Tencent Holdings, Thomson Locations: SHANGHAI, China, Tesla, Frankfurt