India-based steel manufacturer JSW Steel has increased its stake in India-based minerals trading company Dolvi Minerals and Metals from 60 percent to 100 percent, acquiring stakes from existing investors including Standard Chartered Private Equity (SCPE) for INR1.09 billion (approximately US$15 million). Dolvi Minerals is a trader, wholesaler and retailer of metallic and non-metallic minerals, including coal, lignite and iron steel products.