годовой
• The mill will have an annual (or yearly) capacity of 120,000 tons of ... [or a capacity of ... per year (or per annum, or annually)].
Источник:
Русско-английский научно-технический словарь
на Gufo.me
• The mill will have an annual (or yearly) capacity of 120,000 tons of ... [or a capacity of ... per year (or per annum, or annually)].