More than two-thirds of the companies investigated by China in its latest campaign against pollution have violated environmental rules, a environment ministry official told a briefing on Friday.
China launched a campaign earlier this month aimed at "normalizing compliance" in 28 cities in the Beijing-Tianjin-Hebei region, a major pollution hot spot.
Tian Weiyong, head of the monitoring department at the Ministry of Environmental Protection, said 4,077 firms had already been investigated as part of the campaign, and 2,808 firms were found to have violated environmental rules, 69 percent of the total.
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