Sanki Engineering reports heavy oil spill at Osaka facility

Sanki Engineering Co., Ltd. announced a heavy oil spill incident that occurred at a site it contracts. The accident took place on September 26, 2025, at a facility owned by Nippon Life Insurance Company in Ibaraki City, Osaka Prefecture. During inspection work on an emergency generator within the facility, an operational error led to heavy oil leaking from the generator's fuel tank, with a portion flowing outside the facility.

The company is currently implementing heavy oil diffusion prevention measures and recovery operations under the guidance of relevant authorities. Sanki Engineering is also assessing the impact on the surrounding environment, including rivers, and will take necessary countermeasures while conducting a thorough investigation into the cause to prevent recurrence.

Sanki Engineering is collaborating with the involved businesses to determine the cause. The company stated that any facts impacting its financial performance that require disclosure will be announced promptly. The company extends its deepest apologies for the significant inconvenience and concern caused to local residents and all parties involved.