By Eileen Soreng and Sethuraman N R


May 16 Vanadium prices have climbed to four-year highs due to tighter supplies created by a shift in production processes and stringent environmental policies in top producer China.

Vanadium is used to strengthen steel and in a new generation of batteries, which advocates say has advantages over lithium batteries in terms of grid storage.

There is a current shift towards more vanadium being produced from ore rather than as a steel by-product while China tackles environmental regulations, traders and analysts said.

Read more via MINOR METALS-Vanadium prices hit 4-year high on supply crunch | Reuters