[1] The nickel and cobalt laterite deposit at Bulong were discovered by the exploration department of WMC Resources in 1978 but not considered viable to be mined.

[3] WMC re-acquired a 70 percent interest in the project in October 1990, forming a joint-venture with Resolute Resources by investing A$1 million in cash and a commitment to carry out a feasibility study and to manage the proposed project as well as covering the first A$10 million of it.

The mine subsequently underperformed in production and finances, reaching a low point of an almost A$250 million loss in 2000–01.

Despite this, the company's two-year suspension from the Australian securities exchange remained in place because of a lack of funds.

Addition of sulphuric acid was required to make the process work, to a degree that the mine exhausted the available supply in the state.

This, combined with a grade as low as one percent and the excessive use of acid damaging the process plant eventually forced Preston Resources into near-financial collapse.

[11] The process plant passed into the ownership of Norilsk Nickel by 2008–09, now under the name of Avalon-Bulong with just 13 people employed there.

[14] Because of local concern over the state of the abandoned tailings storage facility and evaporation ponds, the mining lease having expired in 2013, and its impact on near-by Lake Yindarlgooda, the Western Australian Department of Mines, Industry Regulation and Safety commissioned an investigation which resulted in a 900-page report published in 2021.