** J.P. Morgan raises price target on agri-chemical companies Nutrien NTR.TO and Mosaic MOS.N as potash and phosphate prices inch up

** Says potash prices are rising in countries that do not have excess potash inventories and are yet to sign their annual contracts

** "New contract signings are likely to keep markets from loosening" - J.P. Morgan

** Brokerage says NTR and MOS are benefiting from tightness in the potash market

** "Phosphate prices are also climbing because of curtailed phosphate exports from China and phosphate production disruptions in the U.S." - brokerage

Brokerage changes PT on the following companies:

(Reporting by Sumit Saha in Bengaluru)

((Sumit.Saha@thomsonreuters.com;))