The president of Quanjian Nature Medicine Technology Development Co Ltd and 11 other staff members were sentenced to jail for the crimes of organizing and leading a scheme that used false advertising to cheat thousands out of their savings by selling health products, according to the People's Court of Wuqing district in Tianjin on Wednesday.

Shu Yuhui, president of the company headquartered in Wuqing district of northwestern Tianjin, was sentenced to nine years in prison and to pay a fine of 50 million yuan ($7.2 million).

The company was fined 100 million yuan. The remaining 11 defendants were jailed for three to six years.

Chinese authorities launched a nationwide campaign to crack down on irregularities in the health product market after an investigation into the Quanjian case started in December 2018.

The father of a 7-year-old girl who died of cancer in Tianjin in 2015 said early last year he will exhaust all his means to keep suing Quanjian, the drug manufacturing company whose products allegedly caused the deterioration of the health of his daughter.