SAO PAULO, Nov 17 (Reuters) - JBS, the world's leading meatpacker, on Monday will reopen a large Brazilian beef unit in Diamantino, Mato Grosso state, which had been closed after a fire in June, the company said on Friday.

JBS also announced total investments of 800 million reais ($163 million) to transform the facility into Latin America's largest beef plant, with capacity to process 3,600 head per day. ($1 = 4.8986 reais) (Reporting by Roberto Samora Writing by Ana Mano)