Group 1 - The core viewpoint of the article is that Wanma Technology's subsidiary, Youka Technology, focuses on providing products and services related to vehicle networking, platform operation, and autonomous driving toolchains, but does not currently engage in the development of automotive-grade chips [1] Group 2 - Youka Technology is a wholly-owned subsidiary of Wanma Technology [1] - The company primarily serves automotive manufacturers [1] - The services offered include vehicle networking connection management and platform operation [1]