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Zhejiang company supplies a third of the world's caviar

ezhejiang.gov.cn| Updated :2025-04-23

In East China's Zhejiang province, one company fuels the world's appetite for caviar. Sturgeon Technology Co, which has a base in Quzhou, produces nearly 35 percent of global supply under its brand Kaluga, exporting to 46 countries and regions.

At the world's largest sturgeon farm, the sound of water is constant. Over 100,000 fish swim in giant circular tanks fed by cold water from the Wuxi River. Oxygen machines roar. It's here that top-grade caviar begins.

Inside the plant, speed and precision take over. Eggs are harvested, sifted, salted, and packed — 16 steps in just 15 minutes. From fish to fork, the journey can take as little as 48 hours.

Sturgeon Technology runs the full cycle: from breeding to processing, all backed by its own tech. In its lab, new products are in the works — beef-like sturgeon slices, collagen drinks for older customers, and caviar ready for 100 different recipes.

In 2024, Kaluga produced over 250 metric tons of caviar, exporting more than 220 tons. It has led the global market for over ten years — and it's still growing.