KRX AI Semiconductor Index

Hanmi Semiconductor's KRW 44.2 billion HBM4 TC Bonder 4.5 Griffin supply contract with SK hynix remains scheduled to end on September 2, 2026.

Digital Frontier's KRW 96.25 billion HBM4 wafer-tester supply contract with SK hynix is scheduled to end on August 31, 2026.

NVIDIA is scheduled to report fiscal 2027 second-quarter results on August 26, providing a near-term read-through on AI infrastructure demand for SK hynix's next-generation memory partnership.

Isu Petasys formally announced an investor presentation for 18 August 2026, coinciding with the date third-party calendars list for its Q2 2026 earnings, although it did not formally designate that date as an earnings-release date.

Third-party earnings calendars now list Leeno Industrial’s Q2 2026 results for 18 August 2026, replacing the previously expected 13 August date, while a company release notice remains unverified.

Independent market-data providers continue to list Park Systems’ 2Q 2026 earnings release for 18 August 2026, with consensus EPS of KRW 1,976 and revenue of about KRW 53.9 billion.

D.I. must file its H1 2026 semiannual report by the August 14 statutory deadline.

Dongjin Semichem remains due to file its H1 2026 report by 14 August after releasing preliminary Q2 consolidated earnings on 6 August.

PSK HOLDINGS is scheduled to file its first-half 2026 report, including second-quarter financial results, by the August 14 statutory deadline.

STI is due to file its 2026 half-year report, covering the six months ended 30 June, by 14 August 2026 under Korea's 45-day periodic-reporting requirement.

Tokai Carbon Korea's H1 2026 semiannual report is due by 14 August 2026, which should provide the reviewed detailed financial statements following the 7 August preliminary-results disclosure.

ISC's statutory 2026 semiannual report is due by August 14, 2026, covering the June 30 half year.

TSE is expected to file its H1 2026 report by the August 14 statutory deadline, creating the next material results catalyst.

YC Corporation is expected to file its H1 2026 semiannual report by the statutory 45-day deadline of August 14, 2026.

KCTech’s statutory 2026 semiannual report is due on 14 August and is expected to provide the first reviewed confirmation of its 5 August preliminary Q2 results.

Daeduck Electronics is due to file its 2026 semiannual report by August 14 under the Financial Supervisory Service schedule for December year-end issuers.

HPSP is scheduled to reach the KRX deadline for filing its H1 2026 report on 14 August 2026.

GigaVis’s Q2 2026 results remain an expected 13–14 August catalyst, with independent market calendars now indicating 13 August and 14 August respectively rather than an issuer-confirmed date.

SK hynix said no decision has been made on a reported sale of an ownership stake in its Chongqing packaging plant, while confirming a review of options to strengthen packaging-business competitiveness.

Hanmi Semiconductor disclosed the establishment of its wholly owned U.S. subsidiary, HANMI USA, Inc., materially advancing its previously announced U.S. expansion plan.

SK hynix approved KRW 54.3 trillion of new construction investment for the Yongin Y2 DRAM/HBM fab and Cheongju M17 NAND fab.

SK hynix approved KRW 54.32 trillion of new facility investment for Yongin Y2 and Cheongju M17 to secure mid- to long-term memory production capacity.

D.I. disclosed that subsidiary Digital Frontier received a KRW 36.10 billion contract from SK hynix to supply semiconductor test equipment including HBM4 wafer testers.

Samsung began general availability of the Galaxy Z Fold8 Ultra, Galaxy Z Fold8 and Galaxy Z Flip8 on August 7, completing the retail launch following record South Korean preorders.

Tokai Carbon Korea disclosed preliminary standalone Q2 2026 revenue of KRW 94.873 billion and operating profit of KRW 26.850 billion on 7 August, superseding the market-data-provider date of 18 August.

Capital Research and Management Company disclosed a new 5.01% passive stake in Park Systems on 7 August 2026.

Dongjin Semichem disclosed preliminary Q2 2026 consolidated revenue of KRW 346.9 billion and operating profit of KRW 59.3 billion, up 17.5% and 38.9% year over year, respectively.

Tokai Carbon's Q2 FY2026 analyst-meeting materials said Solid SiC focus-ring volumes rose significantly on strong memory-semiconductor demand and raised its FY2026 Fine Carbon forecast.

SK hynix said it is reviewing measures to strengthen U.S. subsidiary Solidigm after a report of a KRW 5 trillion pre-IPO, with no decision made and a re-disclosure due September 4, 2026.

At FMS 2026, Samsung unveiled zHBM and zNAND-O concept models and its V10 BV-NAND architecture with more than 400 layers as part of its AI-memory roadmap.

Samsung entered five-year patent cross-license, settlement, memory-supply and ITC-cooperation agreements with Netlist, including a US$239 million upfront license payment and revenue-based quarterly payments.

KCTech disclosed preliminary Q2 2026 consolidated revenue of KRW 112.7 billion, operating profit of KRW 23.5 billion, and net income of KRW 21.1 billion.

SK hynix and Sandisk disclosed the first OCP HBF standard, specifying up to 512GB capacity and approximately 0.4TB/s to 3.0TB/s bandwidth.

Samsung announced Prime Video as the first streaming service to offer HDR10+ ADVANCED globally on supported titles for Samsung's 2026 TV lineup beginning in August 2026.