The restrictions could also dampen appetite for deals in strategic minerals, bankers and analysts said.
Chinese companies' bids for Australian lithium companies are facing regulatory pushback while last month China's Goldsea Group abandoned its pursuit of gold miner Alta Metals after Australia's Foreign Investment Review Board (FIRB) sought more time to review the deal.
FIRB's decision is "highly disappointing," Graeme Testar, director of PCF Capital Group in Perth, told Reuters. "This is gold, it's not on the critical minerals list."
The agency said last month it will screen all deals in which a foreign investor buys an interest in a "sensitive national security business" regardless of value. In April it blocked two investments by Chinese miners into the critical minerals sector, such as lithium and cobalt used in high-tech areas like renewable energy, electric vehicle batteries, and defence.