Indian aluminum producers including Hindalco Industries and Vedanta Ltd. are boosting sales to Japan as U.S. sanctions against Russia¡¯s Rusal and import tariffs shake up traditional supply routes.

India¡¯s product has generally not been regarded as high enough quality by Japan¡¯s demanding buyers, who have preferred top-tier producers like Rio Tinto , Alcoa and South32 as well as United Company Rusal.

However, imports of aluminum ingot from India doubled in the first eight months of 2018 from a year ago, Japanese trade data shows, while imports of alloy ¡ª which include higher-value products ¡ª surged elevenfold off a tiny base.