The company, which recently rebranded as Group 6 Metals, said activities on the ground at King Island had begun and earthworks were scheduled for December.

Group 6 plans to mine 400,000 tonnes of tungsten for eight years from Dolphin's open pit for production of 3500t of tungsten concentrate per year, through a $42 million processing plant designed by Gekko Systems.

Containing a gravity circuit and a small flotation circuit, the plant will also pick up waste gravity tails.

While shipping delays and freight cost rises continue to play havoc with Dolphin's development timeline the company is hoping its decision to pay deposits on $800,000 worth of long lead time items helps it stay on schedule.

Earthworks will start next month when a D8 bulldozer is delivered to site.

Group 6 Metals executive chairman Johann Jacobs said the company had worked tirelessly to progress to the fully funded stage.

"For all of those who have supported us on this journey, we thank you," he said.

"The Dolphin tungsten mine is host to the highest-grade tungsten deposit of significant size in the Western world, and we look forward to the recommencement of mining from this fantastic asset."