The ASX-listed Tawana indicated commissioning would start in March and first delivery of production in April.
The timeframe represents a slight slippage on forecasts promoted last August that pointed to commissioning being underway now and first shipments in March.
Bald Hill, located 50km southeast of Kambalda, is forecast to produce about 155,000 tonnes per annum of spodumene concentrate.
Tawana and joint venture partner Alliance Mineral Assets (listed in Singapore), have both signed offtake agreements that involves pricing this year and 2019 of US$880/t (FOB Esperance).
Meanwhile Tawana reported today that tantalum offtake negotiations were progressing, with Bald Hill potentially producing 260,000 pounds pa of tantalum pentoxide.
Shares in in Tawana were up 3.5% to A52.2c in early trade, capitalising the company at $263 million.
The stock has gained 350% over the past year.