Ban Houayxai Gold-Silver Operation

The Ban Houayxai Gold-Silver Operation is located approximately 25 kilometres west of PanAust's Phu Kham Copper-Gold Operation.

Commencing production in 2012, Ban Houayxai comprises an open-pit mine feeding ore to a conventional carbon in leach and gravity recovery process.

June quarter 2021 production

During the June quarter 2021, the Ban Houayxai Operation poured 24,509 ounces (oz) of gold and 166,901oz of silver in doré for a C1* cost of US$695/oz gold. An all-in sustaining cost (AISC**) of US$1,142/oz gold was released.

The Operation mined 3.6 million tonnes (Mt) of ex-pit material during the quarter which included 930,000t of gold-silver ore. Over 1Mt of ore was processed.

Gold and silver doré sold during the quarter totalled 33,51oz and 234,607oz respectively.

Award-winning operation

During the December quarter 2021, the Operation retained its Caterpillar 5-star contamination control ratings for its mobile maintenance workshop and associated supply facilities. This was the ninth consecutive year the Ban Houayxai Operation has achieved this highest rating.

Ban Houayxai was designed in accordance with the International Cyanide Management Code (the Code) - a voluntary program for the responsible manufacture, transport, use and disposal of cyanide in the production of gold. The Operation received pre-operational certification in 2012, operational certification in 2013, and was recertified in 2019.

In 2013, PanAust received the Project Development of the Year Award at the Mines and Money Hong Kong Asia Mining Awards. The accolade recognised the application of outstanding project management during the development of the Ban Houayxai Gold-Silver Operation.

*Brook Hunt convention for the reporting of direct costs comprising: mine site, product transportation and freight, treatment and refining charges and marketing costs; based on payable metal content after by-product credits

**AISC reported are the C1 cost plus royalties, allocated corporate support charges, shared services costs, sustaining capital; lease principal and interest charges; and deferred mining and inventory adjustments capitalised