Chapter 11 Property, Plant, and Equipment and Intangible Assets:
Utilization and Impairment
117. Zvinakis Mining Company paid $200,000 for the rights to mine lead in southeast Missouri.
The cost to drill and erect a mine shaft was $2,400,000, and equipment to process the lead ore
before shipment to the smelter was $1,800,000. The mine is expected to yield 2,000,000 tons
of ore during the five years it is expected to be operating. The equipment has an estimated
residual value of $150,000 when mining is concluded. The mine started operations on April
30, 2016. In 2016, 300,000 tons of ore were extracted, and in 2017, 700,000 tons were mined.
Required:
1. Compute the depletion rate and the units–of-production depreciation rate.
2. Compute depletion and depreciation for 2016 and 2017.
Answer:
118. On February 20, 2016, Genoa Mining Company incurred costs of $3,600,000 to acquire and
prepare to extract an estimated 4,000,000 tons of mineral deposits. In 2016, 450,000 tons of
ore were mined. At the beginning of 2017, Genoa geologists estimated that 3,900,000 tons of
ore still remained. In 2017, 700,000 tons of ore were mined.
Required:
Compute depletion for 2016 and 2017.