How is zakat to be paid on a water desalination company that has daily output and equipment not replaced until after years?

Zakat is obligatory on the company's profits if a full lunar year has passed over them, provided the capital reaches the nisab (minimum threshold) on its own or when combined with cash or trade goods. Expected debts are added, and due debts are subtracted. Equipment, machinery, vehicles, and fixed tools not intended for sale are exempt from zakat. If the company is owned by multiple individuals, each person pays zakat on their share if it reaches the nisab and a full lunar year has passed over it. The nisab is equivalent to 85 grams of gold, and the zakat rate is one-quarter of one-tenth (2.5%).