South Africa needs Africa

South Africa runs a substantial trade surplus with the rest of Africa. That surplus is the point: it exists because the continent buys value-added goods that South African factories would otherwise struggle to place. Bars show relative composition, not absolute trade value.

Sasol's Secunda complex — the backbone of South Africa's liquid fuels supply — runs on natural gas piped roughly 865 km from the Pande and Temane fields in Mozambique. Cahora Bassa hydropower has fed the national grid for decades. During load-shedding, Eskom imports from neighbours it usually sells to. There is no domestic substitute waiting in reserve.

Remove the rest of Africa and these are no longer continental champions. They are companies serving a single domestic market of roughly 62 million people with constrained growth. The JSE's international story is, to a large degree, an African story.

For most of the twentieth century, South African gold and coal mining depended on recruited labour from Lesotho, Mozambique, Malawi, Botswana and Zimbabwe — organised through WNLA and TEBA at a scale that shaped the entire subcontinent's economy. Agriculture, construction, hospitality and domestic work still draw on cross-border labour today.

A meaningful share of what moves through Durban and Richards Bay is not South African cargo at all. Zambian copper, Congolese cobalt and Zimbabwean and Botswanan freight transit South African ports because those countries are landlocked, not because South Africa produced the goods. Port relevance rented from neighbours is not the same as port relevance owned.

Walvis Bay, Beira, Nacala, Dar es Salaam and the Lobito Corridor are all competing for exactly this traffic — and the corridor investments of the last decade have been aimed squarely at it.

The accurate finding is not that Africa carries South Africa. It is that the dependency is mutual, and that South Africa has spent a generation describing it as one-directional. The correction is the argument.