Rubaya: Where Coltan Is Born to Jet-Set to Asia

Oh, I'm sorry, did I miss the part where a little town called Rubaya decided to produce a whopping 15% of the world's coltan? No? Well, here it is: 'The Congolese town of Rubaya produces around 15% of the world’s coltan,' which then takes an epic journey 'thousands of kilometers away to Asia where it’s processed into tantalum.' It's like your favorite local bakery sending its secret cookie dough halfway across the planet just so some dude in Asia can bake it into a cookie. So let me get this straight: giant supply chains running on the sweat of one tiny town just so we can have shiny gadgets? You can't make this stuff up!

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Source: Japantimes | Published: 8/14/2025 | Author: Unknown