Ulla Setswalo

The lube kitchen series part 13: Extreme Pressure (EP) additives – the additives that thrive under pressure

By Steven Lumley, technical manager, WearCheck Continuing the journey through the world of anti-wear additives with condition monitoring specialist company, WearCheck, this final instalment of the lube kitchen series looks at additives that work their magic under pressure – Extreme Pressure (EP) additives – the other metal guardians in your …

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Botswana Economy Under Pressure as Diamond Slump Triggers IMF Call for ‘Bold Reforms’

Botswana is facing its sharpest economic downturn in over a decade, with the International Monetary Fund (IMF) warning that the country’s economic outlook has “deteriorated markedly” due to a prolonged slump in global demand for natural diamonds. The crisis, fueled by increased competition from lab-grown alternatives and shifting consumer preferences, …

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African Nations Must Boost Resource Contract Negotiation — Kabemba

The Executive Director of the Southern Africa Resource Watch (SARW), Claude Kabemba,has urged African governments to strengthen their capacity to negotiate mining and resource contracts, warning that the continent continues to lose billions in potential revenue despite being home to significant mineral reserves. “Africa holds around 30 percent of the …

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Belgrade Talks Signal Fresh Momentum in Serbia–Botswana Partnership

A renewed sense of momentum is defining relations between Serbia and Botswana, Serbian Foreign Minister Marko Djuric said following his meeting with Botswana’s Minister of International Relations, Phenyo Butale, in Belgrade on 28 November 2025. He noted that both countries were committed to broadening cooperation in key areas including the …

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The lube kitchen series part 12: anti-wear additives – the metal guardians in your oil

By Steven Lumley, technical manager, WearCheck Specialist condition monitoring company, WearCheck, keeps adding to the discussion about oil additives – the latest topic is anti-wear additives. What are they? Zinc dithiophosphate (ZDP), Zinc dialkyl-dithiophosphate (ZDDP) compounds, organic phosphates, Organomolybdenum compounds. What do they do? Reduce friction and wear How do …

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Why AI will never truly understand machines — and why that matters

Cutting-edge technology and solutions powered by artificial intelligence (AI) are embraced by specialist condition monitoring company, WearCheck, where the extreme accuracy of data used to assess and diagnose machine health is paramount. However, it is important that certain diagnostic responsibilities are not just assigned to AI tools without considering the …

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Sandfire Backs Botswana Mining Supply Chain Boost

Through its subsidiary Tshukudu Metals Botswana (TMB), Sandfire has joined an industry-wide initiative led by Botswana’s Ministry of Minerals and Energy to strengthen local mining supply chains. The Memorandum of Understanding (MOU), also signed by Kopano Copper Mine, Debswana Diamond Company, Morupule Coal Mine, Botswana Railways, Botswana Ash and the …

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The lube kitchen series part 11: friction modifiers – the smooth operators in your oil

By Steven Lumley, technical manager, WearCheck   Continuing the dialogue around oil additives with condition monitoring specialist company, WearCheck, this time the focus turns to friction modifiers. What are they? Organic fatty acids and amines, high-molecular-weight organic phosphorus and phosphoric acid esters What do they do? Alter coefficient of friction …

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African Mining Indaba Puts Regional Integration on the Agenda as Key to Unlocking Mineral Value

South Africa—Africa’s ability to capture the full economic, industrial, and societal value of its vast mineral endowments hinges entirely on regional integration and a decisive shift from policy dialogue to co-ordinated action. That was the unequivocal message delivered by industry experts and policymakers at a media briefing for the Investing …

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Vivo Energy Botswana and Pick n Pay Launch New Convenience Retail Era

Vivo Energy Botswana and Pick n Pay have officially partnered to introduce a new chapter in convenience retail with the launch of the country’s first Pick n Pay Go store. This collaboration brings together two leading names in fuel and retail, offering customers a blend of quality products and services. …

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