17 December 2025 | 7:45PM HKT Equity Research TFC Optical (300394.SZ) +852-2978-2930 | allen.k.chang@gs.com Goldman Sachs (Asia) L.L.C. Verena Jeng 1.6T Optical engines ramping up; CPO to drive dollar content; Up to Buy 300394.SZ 12m Price Target: Rmb271.00 Price: Rmb199.30 Upside: 36.0% We expect TFC Optical to benefit from the 1.6T optical engines scale ramp-up in 2026E and growing demand from scale-out CPO (Co-Packaged Switch) switches, as well as long-term opportunities in scale-up architecture. We rais ...

Core Viewpoint - The CPO (Co-Packaged Optics) technology is gaining traction in the optical communication sector, with significant stock price increases for companies involved in this field, indicating a growing market interest and potential investment opportunities [1][2]. Group 1: Stock Performance - Tianfu Communication (300394.SZ) saw a price increase of 12.12%, reaching 76.20, with a market capitalization of 591.2 billion [2]. - LianTe Technology (301205.SZ) experienced a 10.66% rise, with a current price of 80.47 and a market cap of 54.7 billion [2]. - Zhongji Xuchuang (300308.SZ) reported a 7.93% increase, with a price of 116.54 and a market cap of 1288.5 billion [2]. - Bochuang Technology (300548.SZ) increased by 6.35%, reaching 56.07, with a market cap of 150.5 billion [2]. - Dekeli (688205.SS) rose by 6.32%, with a price of 67.00 and a market cap of 59.1 billion [2]. - Guangxun Technology (002281.SZ) saw a 5.58% increase, with a price of 45.61 and a market cap of 352.6 billion [2]. Group 2: CPO Technology Developments - Broadcom announced the delivery of the Tomahawk 6 (TH6) switch chip, which supports both conventional and CPO versions [3]. - TSMC is accelerating its co-packaged optical technology, expecting to have production lines ready by June 2025, with small-scale production in the second half of 2025 and mass production starting in 2026 [3]. - NVIDIA introduced co-packaged optical switches at the GTC conference, with InfiniBand CPO expected to launch in the second half of 2025 and Ethernet CPO planned for the second half of 2026 [3]. Group 3: Market Insights - CPO technology enables miniaturization and integration of high-speed optical modules, reducing chip packaging size and improving system integration [4]. - The technology facilitates direct connections from CPUs and GPUs to various devices, enhancing resource pooling and memory disaggregation while minimizing signal transmission loss and power consumption [4]. - The CPO market generated approximately $3.8 million in revenue in 2022, projected to reach $2.6 billion by 2033, with a compound annual growth rate (CAGR) of 46% from 2022 to 2033 and 80% from 2028 to 2033 [5].