May 26th 2026 2026 GOLD PRESENTATION SERIES SUMMARY The Overberg Geoscientists Group (RSA) have recently presented a series of lectures on Witwatersrand gold in collaboration with University of Melbourne GOLD and Stellenbosch University. This note below provides a summary of the latest presentations, discussions and outcomes. The 2026 presentations follow successful gold series presentations in 2022 and 2025; all the presentations/lectures were recorded and are available for

01 June, 2026 Highlights: ➢ OGG Website – http://www.ogsg.co.za/ Now live - comments and suggestions to ensure it is user friendly and adds value are welcome. ➢ Onrus River/H&A Valley Geology Excursion - Led by John Blaine, a great success with 30 participants including geologists, hydrogeologists, ecologists, wine makers, non-geologists, an excellent group of smart young geologists and good weather. An Excursion Guidebook is available for those interested and a rerun p

01 May, 2026 Highlights: ➢ Overberg Geoscientists Website V-1 to be launched shortly. ➢ OGG, University Stellenbosch & Melbourne Gold-26 Presentation Series completed successfully, all six YouTube presentations available on-line: https://www.youtube.com/playlist?list=PL-MPMaHidsW2tZEQv06FmiLjubVejMGhh. Download Newsletter #6

01 April, 2026 Highlights: ➢ On-line Gold-2026 presentations have provided further fascinating insights into Wits Gold and other international gold occurrences – all the latest presentations are on YouTube. ➢ The 24 March launch of the educational Fossil and Minerals Display at Harold Porter Gardens (HPG) was most successful and well attended, and complements the Earh Age Display at HPG. Download Newsletter #5

March - April 2026 Reminder Gold Presentation Series #3 The major downturn in South African gold production has been the backdrop for the International Gold Series, but not the sole driver of the presentations going back to 2022. The aim of the 2026 follow-up gold series is to more broadly revisit old paradigms, and facilitate renewed interest in new scientific analysis and interpretations of gold deposits. Key premises are that discovery of new goldfields would increase pr

03 March 2026 Highlights: Herewith OGG Newsletter #4 of 2026 with details of forthcoming activities, 2026 GeoExcursions and the forthcoming Gold Presentation Series. Download Newsletter #4

16 February, 2026 Highlights: ➢ Launch of OGG Educational Fossil & Mineral Display @ Harold Porter Gardens (SANBI), Bettys Bay -> 19 March, 2026, 10h00 – HPG ➢ 2026 GeoExcursions: 6th June Onrus River Valley geological history; 4 – 6th Sept Greater-Worcester & Hex River Valley Geology, Fold Belt Syntaxis, Hot-springs, Aquifers & Wine experience Download Newsletter #3

31 January, 2026 Highlights: The Big Blue Cullinan mine diamond ➢ Harold Porter Gardens (HPG) Fossils & Minerals and Earth Age Display attracted keen interest through the 2025/26 Festive season ➢ Notable early-2026 donations and fees contributed by OGG members are acknowledged. Download Newsletter:

15 January, 2026 Welcome Back ! We trust that All our OGG Members and sponsors had an enjoyable holiday and festive season, and that 2026 will be a good one. Likewise, we look forward to seeing and engaging with You at OGG activities through the year. Download Newsletter

01 March, 2026 Reimagining southern African Geology Strategy - Looking past traditional geoscience & mining, highlighting the region’s geology as a natural legacy and driver of inclusive & sustainable development Geology - foundation of our modern society: ➢ Bed-rock for locating essential natural resources (water, minerals, energy), ➢ Providing soil and sustenance for the natural environment and plant, animal and food sources ➢ Guiding safe infrastructure engineering, mitig

The Field Excursion Guide provides an overview of the western and southern Cape geology, comprising +600Ma of Late-Proterozoic/Paleozoic basement rocks of the Malmesbury Group, related Cambrian Cape Granites, extensive overlying Palaeozoic Cape Supergroup (Table Mountain Sandstones & Bokkeveld sediments), and cover rocks of the Cenozoic Bredasdorp Group.