The price of standard G.652.D single-mode optical fiber climbed from under 20 yuan per core-kilometer in early 2025 to nearly 100 yuan by mid-2026—a roughly fivefold increase. Meanwhile, G.657.A2 optical fiber used in data centers jumped from 32 yuan to 240 yuan, a rise of 650%. These surging prices fueled strong profit growth across the industry. According to the National Bureau of Statistics, from January to September, the buildout of computing power and data centers drove profits in the optical fiber manufacturing and optical cable manufacturing sectors up by 5.7 times and 1.1 times, respectively.