A duopoly with a long tail双寡头加长尾
Xinyi Solar (32,200 t/d) and Flat Glass (23,000 t/d) together control ~58% of in-production capacity. The remaining ~42% is split across eight smaller listed names. Three provinces — Anhui, Zhejiang, Guangdong — host the bulk of the country's furnaces. 信义光能（32,200 吨/日）和福莱特（23,000 吨/日）合计占在产产能约 58%。剩余约 42% 由八家较小的上市公司瓜分。安徽、浙江、广东三省承载了全国大部分窑炉。
Top 10 capacity share (in-production)十大在产产能份额
t/dProvince distribution of listed plants上市公司工厂省份分布
site count工厂数Top 10 listed solar glass producers — 2025 ranked十大上市光伏玻璃企业 — 2025 排名
| # | Company公司 | Ticker代码 | HQ Province总部省份 | Capacity (t/d)产能（吨/日） | Share份额 |
|---|---|---|---|---|---|
| 1 | Xinyi Solar信义光能 | 0968.HK | Anhui (multi-base)安徽（多基地） | 32,200 | 33.8% |
| 2 | Flat Glass福莱特 | 601865.SH | Zhejiang浙江 | 23,000 | 24.2% |
| 3 | CSG Holding南玻 A | 000012.SZ | Guangdong广东 | 6,400 | 6.7% |
| 4 | Jinjing Sci-Tech金晶科技 | 600586.SH | Shandong山东 | 5,200 | 5.5% |
| 5 | Irico New Energy彩虹新能源 | 0438.HK | Shaanxi陕西 | 4,800 | 5.0% |
| 6 | Almaden亚玛顿 | 002623.SZ | Jiangsu江苏 | 3,000 | 3.2% |
| 7 | Anci Hi-Tech安彩高科 | 600207.SH | Henan河南 | 2,700 | 2.8% |
| 8 | Topray Solar拓日新能 | 002218.SZ | Guangdong广东 | 2,000 | 2.1% |
| 9 | Hainan Development海南发展 | 002163.SZ | Hainan海南 | 2,000 | 2.1% |
| 10 | Luoyang Glass洛阳玻璃 | 600876.SH | Henan河南 | 1,800 | 1.9% |
Why duopoly matters. When two firms own 58% of working capacity, capacity decisions made jointly behave like coordinated supply. Whatever the regulator wants from this industry will go through their cold-repair calendar first.
双寡头为何重要。 当两家公司占据 58% 的在产产能时，它们联合做出的产能决策，行为上等同于协调供给。监管层对这个行业的任何意图，都会先经过这两家的冷修日历。