In May, 2018, K2 Black Panther main battle tank conducted a month-long +600km endurance & live fire test in the deserts of Oman.
Turkish Altay MBT, derivative of the K2, suffered an engine failure and the German Leopard 2A6 was bogged down in a Wadi (dry riverbed) during an earlier testing. Meanwhile, K2 Black Panther successfully finished the trial without major issues.
Oman's military was reportedly highly satisfied with the K2, but the decision-making process has been slow due to internal bureaucracy and now COVID-19 pandemic.
While the bilateral agremeent is still being processed, Hyundai Rotem is modifying the K2 to better fit Oman's requirements. This includes heavy-duty air conditioning, intake filter, side skirt and increased IED protection up to STANAG Level 3 using lightweight (1 ton) Ceramic Matrix Composites armor.
If the K2 deal is finalized, Oman's Army will reportedly also purchase 10 K600 Combat Engineer Vehicle from Hyundai Rotem.
Source: Military Review / 밀리터리 리뷰