Is zakat obligatory on money invested in trade or projects susceptible to profit or loss?

Zakat is obligatory on commercial assets, whether profitable or loss-making, if they reach the nisab and a full year (hawl) has passed on them. Both the principal capital and its profit are subject to zakat. As for fixed assets like factories and equipment, zakat is due on their profits if these profits reach the nisab and a full year (hawl) has passed on them, unless the intention behind acquiring these assets themselves was for trade, in which case zakat is obligatory on them.