Consolidated Tin Mines Limited announced that SRK Consulting (Australasia) Pty Ltd. (SRK) has now completed a new Mineral Resource Estimate on the King Vol Project. The January 2021 King Vol Mineral Resource estimate has been classified in accordance with the guidelines of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code, 2012 edition). The 2021 Mineral Resources have been reported above a 3% Zn cut-off grade which is consistent with previous Mineral Resource estimates and includes underground development and stope mining depletion until 10 March 2020. In contrast, a 3.5%Zn cut-off grade is currently used to differentiate between ore and waste in the King Vol underground operation. SRK is of the opinion that all the classified Mineral Resources above 3% Zn cut-off would have reasonable prospects of eventual economic extraction using the current long hole open stoping mining method. The King Vol deposit is a polymetallic (Zn, Pb, Cu and Ag) skarn deposit occurring as steeply west-dipping tabular lenses, located on sheared contacts between sediments and carbonate rocks of the Chillagoe Formation. A distinctive though internally complex `Mine Sequence' stratigraphy has been firmly established from drilling and mapping. It comprises, from east to west (oldest to youngest), the Far Eastern Chert Unit (FECHET), the Footwall Mixed Unit (SIS), the Eastern Chert Unit (ECHT), the Interbedded Siltstones and Sandstones Unit (ISH), the Eastern Limestone Unit (ELST), the Arkose Unit (ARK) and the Western Limestone Unit (WLST). The 2020 Mineral Resource estimate was prepared using data acquired from reverse circulation (RC), diamond drill core (DDH), reverse circulation drillholes with diamond drillhole tails (RCD) and underground diamond core (UGDD) from drilling programmes conducted between 1989 and 2019 (Approximately 87% of the drillhole data has been collected since 1999 when Kagara acquired the project. The geological models have been constructed using information from drillhole logging and underground backs mapping and include lithological domains, mineralisation domains (lenses), a basic structural model including identified fault planes and an oxide weathering domain. The mineralised lenses have a complex morphology. They pinch and swell and are anastomosing along strike and up dip and down dip and they are often offset by cross-cutting structures. A cut-off grade of 3% Zn has been used for Mineral Resource reporting. This cut-off is consistent with previous Mineral Resource estimates and the current ore/waste cut-off of 3.5% Zn used in the King Vol underground operation. The King Vol deposit is mined as an underground operation. Development levels are spaced approximately every 20 m, with drive dimensions of approximately 4.5 m wide × 4.5 m high and 3 m in depth. Open stope panels are approximately 5-10 m wide, 20 m high and 20­60 m long.