Multiple web search results confirm that China is supporting Namibia's goal of moving beyond raw material exports by promoting domestic processing of critical minerals and uranium. Sources mention China's support for 'processing, conversion and related downstream cooperation' for minerals like uranium.

Multiple web search results corroborate that following talks in Beijing between the foreign ministers, China pledged support to help Namibia transform its resources through local processing and downstream cooperation. The evidence points to a joint communique and subsequent discussions confirming this pledge.

Multiple web search results confirm that Namibia banned the export of unprocessed lithium and other critical minerals. While the evidence does not explicitly mention Zimbabwe's actions as a direct parallel, it confirms the core action (banning unprocessed exports) and the motivation (capturing value from clean energy metals), which aligns with the claim's premise.

The web search results contain a joint press statement mentioning that efforts are aimed at promoting industrialization, strengthening local processing capacity, and increasing integration into global industrial chains, specifically naming sectors like green hydrogen, oil, and mining, matching the claim's details.

Web search results confirm that Namibia is a major uranium producer and hosts the Rössing and Husab mines. One source states that in 2020, Namibia produced 11% of global uranium, ranking it as the second largest producer, which supports the claim's premise of it being a major global player. The specific claim about being the 'third-largest' and supplying a 'significant portion of China's requirements' is not directly corroborated by a second independent source, but the existence of the mines and its status as a major producer is confirmed by multiple sources.