Zijin Vows to Boost Oversight of Chemicals After Tianjin Blasts

Dump trucks drive along a haul road in the open pit mine at Norton Gold Fields Ltd. Enterprise operations 68 kilometers north-west of Kalgoorlie, Australia, on Tuesday, Aug. 4, 2015. Norton Gold Fields is controlled by China's Zijin Mining Group, the world's biggest gold producer by market value.

Photographer: Carla Gottgens/Bloomberg

The owner of China’s largest gold mine said that it will strengthen control over dangerous chemicals after explosions in Tianjin killed more than 100 people last week, underlining how companies are responding to the disaster.

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