What is the fine-grained topic of the following text: Since receiving a Canadian armed forces order for RG31 Mk3 vehicles in 2003, the South African company&apos;s RG-series of products have boosted the country&apos;s exports by more than $430 million with a steadily increasing series of additional orders for vehicles, spares and support from new customers around the globe. Only return the topic.
South African company's export boost from global RG31 Mk3 vehicle orders