Polyus will collect requests for the bond on Aug. 23, Interfax quoted its source as saying. The yield guidance of the first coupon is equal to or less than 4.20%, it added.

Polyus declined to comment when called by Reuters.

The Moscow Exchange started trading bonds denominated in Chinese yuan earlier in August as it strives to attract Asian investors.

($1 = 6.7730 Chinese yuan renminbi)

(Reporting by Reuters; Editing by Mark Potter)