(Adds details on extension, context in paragraphs 2-5) April 3...

(Adds details on extension, context in paragraphs 2-5)

April 3 (Reuters) - Australia's Azure Minerals (AZS) said on Wednesday the country's Foreign Investment Review Board (FIRB) extended a deadline for approving SQM SQMA.SN and Hancock Prospecting's A$1.7 billion ($1.11 billion) offer for the lithium developer.

The deadline for granting the approval has been extended to April 30 from April 10.

"This is a standard extension request and Azure is not currently aware of any reason that the required FIRB approval will not be received," the company said in a statement.

Chilean miner SQM and Australia's richest person Gina Rinehart's Hancock Prospecting, already Azure's two largest shareholders, teamed up in December to buy the lithium developer.

China's Tianqi Lithium Corp 002466.SZ holds about 20% of SQM shares, and the deal would give SQM, the world's No.2 lithium producer, a foothold in Australia with a stake in Azure's Andover project.

($1 = 1.5354 Australian dollars)