WA gold explorer Aurumin (ASX:AUN) has updated its current capital raising plans with a non-renounceable entitlement offer set to raise approximately $2.2M at a price of $0.03 per share.

Aurumin says the offer is partially underwritten by GBA Capital and will also act as lead manager to the offer, and that the total is an increase on the previously announced $1,240,000.

Aurumin's Managing Director, Brad Valiukas says: "This underpins the majority of the previously announced capital raising and will enable Aurumin to now lock in the commencement of drilling as we continue to explore and expand our Central Sandstone and high-grade Mt Dimer projects."

Mr Valiukas also says the next drill programme at Sandstone will focus on near surface geochemical and structural targets, which are already identified on the mining leases.