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  "publishedAt": "2026-03-31T05:40:41.000Z",
  "site": "https://upstract.com",
  "textContent": "BEIJING — The Iran war is squeezing a global commodities market already pressured by China's export controls and stockpiling efforts. Prices of three niche elements — tungsten, sulfur and helium — have climbed sharply in recent weeks. While none of the commodities are traded as widely as oil, the…",
  "title": "Three niche commodity prices are surging. What they show about China's grip on supply chains"
}