Institute of Mine Surveyors of Southern Africa - IMSSA

09/09/2026

The final ISM XIVth Congress programme is out on the SAIMM website. See it here. Century City Conference Centre, 21-24 September 2026. See you there.🤙

26/08/2026

The programme for the XIX ISM Congress is released! Please visit the organiser's website. Due to enthusiastic abstract submissions, we have added a parallel stream of presentations.

https://www.saimm.co.za/media/com_eventbooking/ISMS%202026%20Programme%2026082026.pdf

26/08/2026

The prgramme for the XiX ISM Congress to be held 21-24 September in Century City will be published today, 26 August 2026.

05/08/2026

Our membership status.

05/08/2026

August 2026. 52% of the Professional Mine Surveyors are older than 60 years of age.

16/07/2026

14/07/2026

We, the Mine Surveyors, will remember Ms Joan Vermaak fondly. She was kind to us. Many of us were privileged to work with her, either on the PLATO Council or on the SAGC Council, or both. Most of us dealt with Joan to get registered - and stay registered. She was the face and the memory of the Council and could recall the reasons behind every material decision ever made. We salute you, Joan, and we will miss you.

03/07/2026

FYI

10/05/2026

And that was the President's Cup for 2026, held at the Eye of Africa golf course on Friday 8 May 2026. Thank you to everyone who supported the event.

26/12/2025

The Canadian Supreme Court (SSC) ruled that public companies must adopt a dynamic (vs periodic) approach to reporting material changes via timely disclosures to the public.

https://www.millerthomson.com/en/insights/mining/the-supreme-courts-lundin-mining-decision-redefines-the-meaning-of-material-change-for-public-companies/

This is to protect the investor during the period that the material change occurs until the next scheduled public reporting date.

It means that the SSC prescribed a special announcement if a material change occurs which affects the share price of the company. In our JSE terms: a special SENS announcement.

Please note that mine surveyors in charge of mine planning must flag these to their senior managers and boards. Examples are strikes, failures, stoppages, flooding etc.

The question is: “Would this change affect a possible investment decision?” If the answer is Yes, the material fact and the material change must be reported to the public.

The Supreme Court of Canada’s Lundin Mining decision broadens the definition of “material change” for reporting issuers, requiring faster and more proactive disclosure of operational events. Learn how the SCC’s two-step test reshapes securities disclosure obligations and increases scrutiny f...