Nikkei edges up, Fast Retailing gains

(Updates to midsession)

TOKYO, April 3 (Reuters) - Japan's Nikkei average edged up on Thursday, with casual clothing firm Fast Retailing Co Ltd (9983.T), whose weighting makes it the second-biggest contributor to the Nikkei, climbing 2 percent on strong sales.

But the market spent most of the morning in negative territory as investors locked in profits after a rally and ahead of U.S. jobs figures.

Toshiba Corp (6502.T) jumped 5.7 percent after the Nikkei business daily reported it has won contracts to build four nuclear power plants in the United States worth about 1.4 trillion yen ($13.7 billion).

The benchmark Nikkei .N225 ended the morning up 0.1 percent at 13,200.71. The broader TOPIX also gained 0.1 percent to 1,282.78. (Reporting by Taiga Uranaka)