Apart from Posco and ArcelorMittal, Tata Steel has also approached Steel Authority of India Ltd (SAIL) for a joint venture.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/sail-talks-tata-jv-progress-posco
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mineral-based-industry
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/posco
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industry
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/jharkhand
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra