One World Lithium Inc. announced the drilling of DDH-4 (diamond drill hole) that, as noted in the Company's news release of September 23, 2021 had commenced at its Salar Del Diablo Lithium Brine Project in Mexico. DDH-4 reached a depth of 381 meters (1,250 feet) on October 2, 2021, with an expected total depth of 600 meters. The project field manager has taken samples from a 50 meter zone between 331 and 381 meters. Drilling resumed late on October 03, 2021. If the results of DDH-4 warrant it, other boreholes will be drilled in the area. The Operator, Mike Rosko of Montgomery & Associates notes that DDH-4 may intersect "historic and current hydrothermal activity is evident and may be a source of lithium, such as in the Lithium Triangle in Argentina & Chile In the Company's news released on September 23, 2021, it noted the proof of concept was delayed for its critical fluid separation technology. The company's clarification is the delay has been nominal and will provide updates from time to time. As reported by Fastmarkets on September 26, 2021, the spot price of lithium carbonate continues to rise by 40.1 % from the previous month average, going from $14,630 to $20,500 per metric ton. So, since September, 2020 the spot price of lithium carbonate has risen from $6,750 to $20,500 per metric ton which is a 204% increase. Mike Rosko, SME Registered member and a Qualified Person as defined by the Canadian National Instrument 43-101, has reviewed and approved the scientific and technical disclosure contained in this news release.