The blaze on Friday night killed nine other people, including four firefighters. Launch Technologies Co, the operator of the plant, is a major global supplier of golf balls.
Authorities reported earlier the remains of three people were found on Sunday, putting the death toll at 10. But one set of bones turned out to be non-human, officials said.
Taiwan's Central News Agency, quoting a Pingtung County fire official, said an explosion caused part of the building to collapse, trapping firefighters and workers under rubble. A second explosion followed 20 minutes later.
More than 100 people were injured in the blaze at Pingtung Technology Industrial Park. The fire was not extinguished until Saturday. The cause remained unclear.
Taiwan is a major manufacturer of golf balls, with factories supplying major brands including Callaway, TaylorMade, Bridgestone, Mizuno and Wilson, according to the 2021 annual report of Launch Technologies.
Launch Technologies, which is listed on the Taipei Exchange, shipped about 260 million golf balls last year, accounting for one-fifth of the global total, the Central News Agency said. About 80 per cent of its sales are in the United States.
The Ministry of Labor said on Saturday it would open an occupational safety investigation into Launch Technologies and its parent company.Â
The factory has been fined in the past for violations found during inspections.
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