Why is Temu so cheap?

Could you please elaborate on why Temu, the e-commerce platform, offers such low prices compared to its competitors? Are there any specific strategies or business models that they employ to keep costs down? Do they have direct relationships with manufacturers, allowing for a more streamlined supply chain and cost savings? Or perhaps they operate on a razor-thin margin to gain market share quickly? Understanding the economics behind Temu's pricing would be insightful.