Calstar Sponge Limited is an enterprise located in India, with the main office in Kolkata. The enterprise operates in the Iron and Steel Mills and Ferroalloy Manufacturing industry. It was first established on March 01, 2004. Calstar Sponge Limited currently employs 286 (2026) people. The company’s latest financial report indicates a net sales revenue drop of 2.02% in 2025. During that time, Calstar Sponge Limited’s total assets grew by 8.62%. In 2025, Calstar Sponge Limited’s net profit margin decreased by 2.97%.
Headquarters
18 R.N. Mukherjee Road West Bengal Kolkata In 700001
Kolkata; West Bengal;
Postal Code: 700001
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