Jan 23 (Reuters) - Brambles Ltd BXB.AX :
* Asx alert-brambles'first-half 2017 trading update-bxb.ax
* It expects first-half constant-currency sales revenue growth of approximately 5%
* expects constant-currency sales revenue and underlying profit growth for year ending 30 june 2017 to be below its current guidance range
* "our first-half result includes small loss from investment in hfg joint venture, which continues to operate in challenging market conditions"
* "due to its recent financial performance an impairment review of our investment in hfg is underway"
* expects first-half constant-currency underlying profit growth of approximately 3% Source text for Eikon: Further company coverage: BXB.AX