Penelitian ini menggunakan metode penelitian yuridis normatif melalui studi kepustakaan untuk meninjau bagaimana hukum World Trade Organization dan secara khusus General Agreement on Trade and Tariff (GATT) mengatur mengenai penggunaan quantitative restriction dalam industri Logam Tanah Jarang untuk melindungi, manusia, binantang, dan tanaman, serta melakukan konservasi sumber daya tidak terbarukan. Penelitian ini akan meninjau penggunaan Klausul XX(b) dan XX(g) dari GATT dalam implementasi quantitative restriction dalam industri Logam Tanah Jarang melalui pembahasan kasus China-Rare Earth. Penelitian ini juga membahas kebijakan alternatif yang dapat ditempuh selain menggunakan quantitative restriction.

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This study uses normative juridical research methods through literature studies to review how the laws of the World Trade Organization and specifically the General Agreement on Trade and Tariff (GATT) regulate the use of quantitative restrictions in the Rare Earth Metals industry to protect humans, animals and plants, as well as to conserve non-renewable resources. This study will review the use of Clauses XX(b) and XX(g) of GATT in the implementation of quantitative restrictions in the Rare Earth Metals industry by discussing the case of China-Rare Earth. This research also discusses alternative policies that can be pursued besides using quantitative restrictions.