In this deep dive, I contrast BHP and DRDGOLD as mining houses at the opposite end of the size and capex spectrum. Where BHP has diversified into copper, DRDGOLD has stuck to its knitting. But will that continue?

In this update, we find the latest on De Beers and the other operations inside Anglo American. ArcelorMittal claims to be fundamentally different, but when will the profits come? Gemfields is being carried by emeralds. Mondi has suffered an ugly drop in margins.

A huge day of news saw updates across many sectors on the JSE. Absa, Harmony, Hudaco, PBT Holdings, Sephaku, Resilient REIT and Thungela gave detailed updates. Sun International's revenue is on track. Gemfields is in serious trouble. Fortress had no problem raising the capital.

Richemont has welcomed a return to growth in Asia Pacific. MAS is making big changes - and Hyprop is happy to be on the other side of a deal for a property in Bulgaria. Finbond, Gemfields and Reunert all have positives and negatives to consider. Orion Minerals raised capital, while Trematon might sell Generation Education.

Sibanye-Stillwater's quarterly update tells a story of rapid growth in earnings across the group. DRDGOLD's quarterly update is promising. Jubilee Metals is ramping up its copper production, but guidance is being revisited. Quantum Foods overcame a period of egg price deflation and grew earnings strongly.

CA Sales somehow grew profits in Botswana. Standard Bank's capital markets day has encouraging targets. Exemplar REITail is another fast-growing property fund. Gemfields and York Timber both find themselves in tough times. Trematon is selling Club Mykonos Langebaan to a CEO-led consortium.

Weekly summary of corporate finance activity by South African exchange listed companies.

Gemfields is having a tough time - and so is Bytes Technology. Burstone, MAS and Netcare released important financial updates. Discovery achieved exceptional returns on its CMT investment. Insimbi is trying to claw its way back.