What became a closey guarded secret in china?

In 1928, the Coca-Cola Company sent a representative to China to establish a bottling plant. The Chinese government required the company to share its secret formula with them in order to operate in the country. The Coca-Cola Company refused, and the Chinese government banned the sale of Coca-Cola in China.

In the years that followed, the Coca-Cola Company made several attempts to re-enter the Chinese market, but the Chinese government continued to refuse to allow the company to operate in the country unless it shared its secret formula.

In 1979, the Coca-Cola Company finally reached an agreement with the Chinese government that allowed the company to re-enter the Chinese market. The company agreed to share its secret formula with the Chinese government, but the Chinese government agreed to keep the formula a closely guarded secret.

The Coca-Cola Company has never publicly released its secret formula, and it is one of the most closely guarded secrets in the world.