How is the Zakat calculated for a factory that owns fixed assets (buildings, lands, machinery, equipment, vehicles), a stock of raw materials, a stock of finished products, and current balances in banks?

Zakat (definition) is obligatory on gold, silver, cash, trade goods, livestock, and produce from the land. There is no Zakat on fixed assets such as buildings, lands, machinery, equipment, and vehicles, unless they are prepared for trade. Zakat is obligatory on finished products ready for marketing and on raw materials, by appraising them at market price upon the completion of a year (hawl) and paying one-quarter of one-tenth (2.5%) of their value. Zakat is also obligatory on bank balances and debts owed by others if they are acknowledged and readily collectible. Debts owed by the Zakat payer do not affect Zakat and are not deducted from it, according to the preponderant opinion.