Ann: Breakthrough Results at Mt Alexander, page-111

https://stgm.com.au/uploads/documents/2017_ASX/Bell_Potter_on_SGQ_23_June_2017.pdf

Refer page 3 of the above report. When SGQ acquired BHP's interest, the latter had 75% with WSA 25%.

"BHP “lost interest” in Mt Alexander when its nickel “bubble” deflated
SGQ acquired BHP’s 75% interest in tenement E29/638 of the Mt Alexander Project in
January 2016 for $0.3m cash plus the granting of conditional off-take rights and two
royalties and it also paid $0.25m in SGQ shares to Western Areas NL (ASX – WSA, Buy)
in return for WSA not exercising its pre-emptive right over the BHP interest. WSA has a
25% non-contributing interest in the E29/638 tenement until there is a decision to mine."