On May 15, 2019 Boise Mechanical Systems, Inc. (BMS) paid $ 320 m cash for a Thallium smelter. The company engineers estimated that the facility would have a sixteen-year service life and that its retirement in accordance with then-current Idaho environmental regulations would cost $80 m. The risk-free rate (rF) was 2.8% and BMS, a BB- credit, expects a 550 bps credit spread to rF. On March 1, 2025 BMS sold the smelter for $190 m. The buyer paid cash and assumed the ARO.

Required: Book the 2025 03 01 transfer. Assume that BMS accountants depreciated the smelter SLN with zero salvage, that discounting was calculated on a continuously compounded basis and that the ARO assumptions had not changed.