The stock price of Bitgwajeonja (Light & Electronics) hit the upper daily limit during the morning session on the 5th. This is interpreted as a concentration of investor buying in optical communication-related companies amid news that the United States is pushing to restrict imports of Chinese-made optical transceivers used in artificial intelligence (AI) data centers.

US Moves to Regulate Chinese Components to Protect Core AI Infrastructure

According to a report by Yonhap News Agency on the 4th, the Trump administration is preparing measures to restrict imports of certain Chinese components used in data centers in order to strengthen national security. It has also been reported that the US Federal Communications Commission (FCC) is drafting regulations to limit imports of new Chinese optical transceivers to protect the core infrastructure of the AI industry.

An optical transceiver is a device that converts electrical signals into optical signals and vice versa between data centers and communication equipment. It is essential for rapidly transmitting large volumes of data between servers and accelerators within AI data centers. If the US regulation on Chinese optical transceivers becomes a reality, market expectations are reflected that the volume previously supplied by Chinese companies could shift to non-Chinese firms. However, the regulation is still in the drafting stage, meaning the final content could change or the initiative could be halted altogether.

Bitgwajeonja Expands Business into High-Speed Optical Communication for AI Data Centers

Bitgwajeonja is a company that researches, develops, and manufactures optical transceivers and optical transceiver modules used in communication equipment that connects optical communication networks. Headquartered in Daedeok-gu, Daejeon, the company's main business focuses on optical components applied to optical access networks, mobile communication base stations, and data communication networks.

According to the product lineup disclosed on the company's official website, it includes high-speed optical transceivers at 1.6-terabit, 800-gigabit, 400-gigabit, and 200-gigabit levels. In addition, the company supplies 100-gigabit, 50-gigabit, and 25-gigabit products, as well as tunable transceivers, optical amplifiers, and portable optical test equipment.

Bitgwajeonja has recently been expanding its business from its conventional communication network-centered operations into the high-speed optical communication market for AI data centers. According to a report by The Bell last May, Bitgwajeonja showcased its optical transceiver products for data centers at the 'AI Expo 2026.' A company official stated, "Last year, data center-related revenue was generated from 200G and 400G products," adding, "For 800G and 1.6T products, we expect to see full-scale revenue generation starting in the second half of this year once testing and verification are completed."

Prior to this, the company also participated in 'OFC 2026,' an optical communication exhibition held in the United States, where it unveiled high-performance products of 800Gbps and above along with optical communication solutions targeting AI data centers and next-generation communication networks.

Future Performance Criteria to Consider for Investment

Today's upper limit is interpreted as the result of strengthened investor sentiment, driven by a combination of news regarding the US push to regulate Chinese optical transceivers and growing expectations for Bitgwajeonja's high-speed optical transceiver business for AI data centers.

However, the US regulatory push does not immediately translate into increased orders for domestic companies. The test results of Bitgwajeonja's 800G and 1.6T products, whether actual supply contracts are signed, and the scale of revenue generation in the second half of the year are expected to serve as key criteria for judging future performance.

[This article is for reference purposes for investment decisions and does not recommend the purchase or sale of any specific stock. The responsibility for stock investments lies solely with the investor. This article was written with AI assistance.]