Any move to impose an anti-dumping duty on cold-rolled grain-oriented electrical steel (CRGO), which accounts for nearly 90 per cent of India's imports to meet domestic requirements, could increase transformer manufacturing costs and slow the country's power grid expansion, Thin Tank GTRI said on Friday. The commerce ministry's arm, Directorate General of Trade Remedies (DGTR), has initiated an anti-dumping probe against imports of CRGO and amorphous metals from China, Japan, Korea and Russia, following a complaint by JSW JFE Electrical Steel Nashik Pvt Ltd. The investigation, initiated on June 22, 2026, covers imports from April 1, 2025, to March 31, 2026, while the injury analysis covers 2022-23 to 2024-25.