KIEV, May 7 - Mittal Steel Kryviy Rih, Ukraine's biggest steel mill, boosted finished roll production 11.3% year-on-year in January-April to 2.39 million tonnes, the Ukrainian Industrial Policy Ministry told Interfax.

Pig iron production grew 15.8% to 2.47 million tonnes, sinter rose 11.7% to 4.05 million tonnes and crude steel rose 20.5% to 2.77 million tonnes.