NGK Insulators wins product liability lawsuit over Indonesia power plant fire

NGK Insulators announced on October 24, 2025, that the Nagoya District Court ruled in its favor, dismissing all claims brought by PT Paiton Energy and its insurers. The lawsuit, initially filed in 2021, sought compensation for damages totaling $151,392,378.84, plus associated delay charges. The dispute stemmed from a transformer fire at an Indonesian thermal power plant in January 2018. The plaintiffs had alleged NGK's responsibility for product and tort liability.

NGK Insulators, a distributor of a bushing incorporated into the transformer, consistently denied liability. The bushing was supplied to a third-party transformer manufacturer, integrated into the transformer, and then delivered to the power plant via a plant engineering firm. The court's judgment fully supported NGK's position, ordering the plaintiffs to bear all court costs.

NGK currently anticipates no impact on its financial results from this ruling. The company stated it would continue to defend its position if the plaintiffs decide to file an appeal.