BRIEF-Shaanxi J&R Optimum Energy's unit signs contracts for 406.5 mln yuan

March 27 (Reuters) - Shaanxi J&R Optimum Energy Co Ltd * Says unit signs battery sales contract for a combined 406.5 million yuan ($59.12 million) Source text in Chinese: http://bit.ly/2oofkXO Further company coverage: ($1 = 6.8754 Chinese yuan renminbi) (Reporting by Hong Kong newsroom)