Ferro chrome drops to a 4-month low ahead of key auction Manganese alloys prices remain subdued on weak demand Ferro silicon prices edge lower in recent trades Indian ferro silicon (Si 70%) prices dropped by INR 600/t ($7/t) w-o-w to INR 97,000/t ($1,075/t) exw-Guwahati. Bhutan’s prices also fell by INR 1,600/t ($18/t) to INR 97,000/t…