![An aerial view of the Yongin Semiconductor Cluster site in Wonsam-myeon, Cheoin-gu, Yongin, Gyeonggi Province. This photo is unrelated to the article. [Yonhap]](https://wimg.heraldcorp.com/news/cms/2026/06/25/news-p.v1.20260213.a441c2eac9f148f5bb218776ff3de77f_P1.jpg)
Rumors of major semiconductor investments by Samsung Electronics and SK Hynix in the Honam region have sent listed companies with ties to the area surging to daily limit gains day after day. Liquor makers, golf course operators, retailers and cement firms have all been swept up under the "Honam stock" banner, even as most show no confirmed business connection to the chipmakers.
Korea Exchange data Thursday showed Nam Hwa Construction hitting the daily upper limit, rising 1,790 won, or 29.93 percent, to 7,770 won. Seosan also extended early gains, with buying spreading broadly across Honam-linked stocks.
On Wednesday, Bohae Brewery, Nam Hwa Construction, Namhwa Industrial, Seoam Machinery Industry and Tongyang Pile all hit their daily limits, while Gwangju Shinsegae surged more than 25 percent. Bohae Brewery and Nam Hwa Construction each hit the daily upper limit three times this month.
The sharpest mover has been Seosan, a cement and ready-mixed concrete company headquartered in Gwangsan-gu, Gwangju. The stock hit the daily upper limit eight times this month, was halted three times amid overheating, and surged roughly eightfold — from 1,025 won in early June to a closing price of 8,120 won on Wednesday.
Market watchers attribute the rally to speculation that Samsung Electronics and SK Hynix are planning large-scale investments in the Honam region. According to political and industry sources, the two chipmakers are reviewing semiconductor investment plans for the area ahead of a public-private joint meeting on "national spatial transformation" — a regional balanced-development initiative — scheduled at Cheong Wa Dae on June 29.
What began as talk of back-end packaging facilities has since expanded to include front-end memory chip production lines and AI data centers, pushing the rumored investment figure to the 300 trillion to 400 trillion won (about $260 billion) range. Analysts say expectations that a large-scale investment would deliver a broad economic boost to the region have been priced into the stocks ahead of any announcement.
Most of the surging stocks share one common thread: they have factories or operations in the Honam region. Bohae Brewery is a liquor company with a manufacturing plant in Jangseong, South Jeolla Province. Nam Hwa Construction is a Honam-based construction company. Namhwa Industrial operates the Muan Country Club in Muan, South Jeolla Province. Seoam Machinery Industry has a facility in the Hanam Industrial Complex in Gwangju. Gwangju Shinsegae is a retailer running department stores and hypermarkets in the Gwangju and Honam area. Seosan is a cement and ready-mixed concrete company headquartered in Gwangsan-gu, Gwangju.
Beyond their regional ties, however, most of the surging stocks have no confirmed direct business relationship with Samsung Electronics or SK Hynix. Tongyang Pile is the only notable exception: the company has a production plant in Iksan, North Jeolla Province, and has previously supplied high-strength prestressed concrete piles to Samsung Electronics' Pyeongtaek campus and SK Hynix's Cheongju semiconductor cluster.
The deeper concern is that investment expectations are being priced into shares well ahead of actual earnings. Seosan, the de facto flagship of the Honam stock rally, posted an operating loss of 3.3 billion won last year on a consolidated basis and has recorded an operating deficit every year since 2022. The company swung to an operating profit of 300 million won in the first quarter of this year, but analysts say it is too early to call a sustained recovery based on a single quarter given the losses of recent years. Namhwa Industrial and Seoam Machinery Industry also posted operating losses of 459.21 million won and 368.93 million won, respectively, in the first quarter.
Market observers say the pattern is a textbook theme-stock frenzy — buying driven purely by regional association, with no confirmed investment announcement or supply chain inclusion. They note that past policy and development themes — including the Daewang Gorae deep-sea gas project, the Saemangeum development and Ukraine reconstruction — also saw stocks with tenuous business links surge and then collapse, and they are urging investors to exercise caution.
"Theme stocks not infrequently spike and then crash," said Hwang Se-woon, a researcher at the Korea Capital Market Institute. "Investors should look carefully at a company's actual value and growth potential before committing."
hajun825@heraldcorp.com
