In a massive and a Deadly Explosion at China Chemical Plant in Shandong Kills 5, Sparks Toxic Gas Concerns. A severe explosion rocked eastern China’s Shandong province on Tuesday, claiming at least five lives, leaving 19 injured, and six people missing, according to Chinese state media. The blast occurred at the Shandong Youdao Chemical plant in Weifang’s Gaomi Renhe industrial park just before noon. Videos shared widely on Chinese social media, and later verified by Reuters, captured the terrifying moment when thick orange and black smoke billowed into the sky, windows shattered, and shockwaves rattled buildings over 7 kilometers away.