The hidden hand

The fish-feed giant powering global solar

China's largest aquaculture producer is also responsible for one in five solar cells worldwide.

The number

20% of global solar cell production

Tongwei's 100+ feed mills supply carp and freshwater fish across China's dinner tables while its solar division manufactures cells for rooftops globally—a dual dominance no competitor has achieved. The Chengdu conglomerate generates roughly equal revenue from both: $8–10B in aquafeed, $10–15B in solar.

Source: About Tongwei · Tongwei Co., Ltd. · Jan 1, 2024

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Essential goods

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Residential Electricity →
energy

Raw inputs

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Aquaculture Compound Feed (Fish / Shrimp Complete Diet) →
manufactured
Electronic-Grade Polysilicon (11N, for Semiconductor Wafers) →
manufactured
Solar-Grade Polysilicon →
manufactured

Facilities

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Tongwei -- Chengdu, Sichuan (Aquafeed HQ) →
CN
Tongwei Baotou Polysilicon Plant →
CN
Tongwei Leshan Solar Industrial Base →
CN

The fish-feed giant powering global solar

Where this story connects

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