That is 2 years LOM of proven and probable reserves. They have...

That is 2 years LOM of proven and probable reserves. They have mineral resources (measured/indicated for 6 years and inferred a further 4 years). It is worth noting they produced 61000 gold oz in 2019 and the reserves fell by only 21000 gold oz over the year. Reserves are being added and it is not unusual for miners to have a short LOM based on proven/probable reserves. It does not mean much if you add new reserves as you produce. Why bother turning resources into reserves well ahead of time.

They also have an active exploration program around the mines so I do not see a life of mine as a problem. There is some drop off in grades, but at current prices those lower grades would still be fine.