Stocks to watch on the Australian stock exchange:

BSL – BLUESCOPE STEEL – up 14 cents, or 0.88 per cent, at $15.98

Share in Bluescop Steel have risen after a White House official said some nations might be exempted from the proposed US tariffs on imported steel and aluminium.

NST – NORTHERN STAR – down two cents, or 0.3 per cent, at $6.61

WGX – WESTGOLD RESOURCES – steady at $1.56

Northern Star Resources has agreed to buy the South Kalgoorlie gold mine from Westgold Resources for $80 million.