SK chairman Chey Tae-won says Gwangju chip fabs may be built in parallel with Yongin

The parallel-build remark kept its conditions in both English renderings. "We will need more sites and more fabs, and we may reach a point where we have to build them in parallel with the Yongin semiconductor cluster," Chey said, according to the Korea Herald ^[2]. The Seoul Economic Daily's translation puts "if necessary" ahead of the parallel build ^[3]. On timing, he said: "I cannot give you an answer today on exactly when construction will begin, because that requires more study, but we will move as fast as we can" ^[4].

SK hynix and Samsung Electronics have pledged a combined 800 trillion won to the Honam cluster, with first mass production targeted for June 2030 ^[10]. Yonhap reported that each company plans two new memory fabs there ^[11]. Across four fabs, the pledge averages 200 trillion won apiece ^[15]. The average is crude: the reports do not split the money by company or by year, and none of them mentions an equipment or materials supplier ^[10][11].

If Gwangju breaks ground while Yongin is still being built, SK pays for two clusters in overlapping years ^[1], and suppliers get Gwangju orders sooner than a Yongin-first sequence would deliver them. If utilities set the pace, Gwangju trails Yongin whatever demand does. According to the Korea Herald, construction speed depends partly on the government securing electricity and industrial water ^[9]. The third outcome is a bigger project. "If more land and more demand are available, we fully expect this Honam project could grow larger," Chey said ^[6]. Land for an early start is limited for now. The ammunition depot and flight safety zones judged suitable for early fab construction cover about 2.08 million square meters ^[12], roughly a quarter of the 8.26 million square meter cluster ^[13][16].

The first won spent at Gwangju would go partly to a group affiliate ^[14]. SK Ecoplant, which handles fab construction for SK, has had executives at the air base seven or eight times, alongside SK hynix ^[14]. In my view, Chey's offer to break ground before power and water arrive ^[8] is the firmest commitment from the visit. It moves construction schedules first, since buildings go up before the tools that fill them.

I think the visit supports an earlier Gwangju start than Yongin-first sequencing would give, with the supplier pipeline following later and with less certainty. The counter-reading is that the parallel line is addressed to the government, whose utility plans set the pace ^[9]. The view is wrong if the timetable Chey said would follow SK's review with central and local authorities ^[7] puts Gwangju's groundbreaking after Yongin's fabs are finished.