MOSCOW, May 13 (RIA Novosti) - Russian Prime Minister Vladimir Putin will pay a working visit to Mongolia on Wednesday to discuss cooperation in transport and agriculture, a deputy government chief of staff, Yury Ushakov, said.

During his one-day visit, Putin will discuss investment and economic cooperation and joint projects with Mongolian President Nambaryn Enkhbayar, Prime Minister Sanjaa Bayar and Speaker of the State Great Khural of Mongolia Damdiny Demberel.

A number of joint ventures will be on the agenda, Ushakov said, including uranium mining in east Mongolia, involving Russia's Rosatom state nuclear corporation, and a project aimed at modernizing the country's railway infrastructure to develop the transport network, which could be used to export products from vast mineral deposits in southern Mongolia onto foreign markets.

The deal primarily concerns transporting products from one of the world's largest undeveloped coal fields, Tavan Tolgoi, as well as the Oyuu Tolgoi gold and copper fields, also known as Turquoise Hill.

The two countries' agriculture ministries are also expected to discuss supplies of Russian agricultural machinery, grain and fertilizers to be purchased with a $300-million credit fund.

Russia is Mongolia's second largest trade partner after China. Trade between the two countries almost doubled last year, reaching $1.3 billion.