Is Putian Rubik's Cube math training formal?

Yes The full name of Putian Rubik's Cube Mathematics Training is Putian Chengxiang Rubik's Cube Mathematics Training Center Co., Ltd. The company has a business license and the registration authority is Putian Chengxiang Market Supervision and Administration Bureau. The main business license project is a for-profit private training institution for primary and secondary school students to carry out discipline training, so the math training of Putian Rubik's Cube is formal.

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