China's effort to win an international certification for Pao Cai, a pickled vegetable dish from Sichuan, is turning into a large disagreement on social media.The disagreement is between Chinese and South Korean internet users. They disagree about the origin of Kimchi, a common Korean food made of cabbage.China recently won a certification from the International Organization for Standardization (ISO) for Pao Cai.The state-run Global Times reported the award as "an international standard for the Kimchi industry led by China."South Koreans quickly disagreed, especially on social media."Its total nonsense, what a thief stealing our culture!" a South Korean internet user wrote on Naver.com."I read a media story that China now says Kimchi is theirs, and that they are making an]international standard for it...I'm worried that they might steal Hanbok and other cultural contents, not just Kimchi," said Kim Seol-ha, a 28-year old in Seoul.