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Key filings, August 10, 2026

483 filings · 12 highlights
← August 7, 2026August 11, 2026 →

Supply contracts 17

8/10Oneul E&MWorth 44.4% of last year's revenue, over about 12 months.₩7.4B
8/10SCL ScienceWorth 35.1% of last year's revenue, over about 36 months.₩7.7B
8/10Xi S&DWorth 14.4% of last year's revenue.₩200B
8/10DavolinkWorth 11.1% of last year's revenue, over about 2 months.₩7B
8/10UnisonWorth 11.1% of last year's revenue, over about 240 months.₩4.5B
8/10HDC HoldingsWorth 8.5% of last year's revenue.₩353B
8/10Ipark Hyundai Development CompanyWorth 8.5% of last year's revenue.₩353B
8/10AmendedKorea Electronic Power Industrial DevelopmentWorth 7.9% of last year's revenue, over about 24 months.₩28.8B
8/10Ilsung ConstructionWorth 7.2% of last year's revenue, over about 29 months.₩32.6B
8/10AmendedKye-Ryong Construction IndustrialWorth 6.7% of last year's revenue, over about 128 months.₩152B
8/10AmendedKorea Electronic Power Industrial DevelopmentWorth 6.3% of last year's revenue, over about 18 months.₩23B
8/10AmendedSTX Engine Co,.Worth 6.2% of last year's revenue, over about 39 months.₩33.6B
8/10AmendedSebo Manufacturing EngineeringWorth 5.8% of last year's revenue, over about 12 months.₩41.6B
8/10TechwingWorth 5.8% of last year's revenue, over about 11 months.₩9.2B
8/10HD Korea Shipbuilding & Offshore EngineeringWorth 5.4% of last year's revenue, over about 48 months.₩956B
8/10HD Hyundai Heavy IndustriesWorth 5.4% of last year's revenue, over about 48 months.₩956B
8/10VitzroSys.Supply contract terminated

Preliminary earnings 26

8/10Swung to profitKorea District HeatingOperating profit: swung to profit (-₩9.6B → ₩33.1B). Revenue ₩653B, up 4.8% YoY.₩33.1B
8/10AmendedSwung to profitSeoul ViosysOperating profit: swung to profit (-₩917M → ₩10.2B). Revenue ₩214B, up 13.8% YoY.₩10.2B
8/10Swung to profitKolmar HoldingsOperating profit: swung to profit (-₩2.1B → ₩747M). Revenue ₩11.5B, up 29.2% YoY.₩747M
8/10Swung to profitSH Energy & ChemicalOperating profit: swung to profit (-₩3.3B → ₩94M). Revenue ₩28.3B, up 11.4% YoY.₩94M
8/10HanssemOperating profit ₩11.3B, up 400.2% YoY. Revenue ₩417B, down 9.2% YoY.₩11.3B
8/10DaedongGearOperating profit ₩1.6B, up 361.1% YoY. Revenue ₩67B, up 13.3% YoY.₩1.6B
8/10PosbankOperating profit ₩6.3B, up 285.8% YoY. Revenue ₩36.6B, up 41% YoY.₩6.3B
8/10GC MediAIOperating profit ₩4B, up 256.1% YoY. Revenue ₩51.5B, up 5.9% YoY.₩4B
8/10CTKOperating profit ₩469M, up 103% YoY. Revenue ₩29B, up 28.9% YoY.₩469M
8/10BMTOperating profit ₩6.3B, up 84.3% YoY. Revenue ₩48.6B, up 23.9% YoY.₩6.3B
8/10C&C InternationalOperating profit ₩1.6B, down 81.6% YoY. Revenue ₩73.3B, down 0.8% YoY.₩1.6B
8/10DaedongOperating profit ₩41.2B, up 64.3% YoY. Revenue ₩467B, up 12.7% YoY.₩41.2B
8/10Kolmar HoldingsOperating profit ₩25.3B, up 54.7% YoY. Revenue ₩142B, down 19% YoY.₩25.3B
8/10LX HoldingsOperating profit ₩60.3B, up 42.1% YoY. Revenue ₩17.3B, up 70.5% YoY.₩60.3B
8/10Cosmecca KoreaOperating profit ₩32.1B, up 39.3% YoY. Revenue ₩226B, up 39.8% YoY.₩32.1B
8/10KEPCO Plant Service & EngineeringOperating profit ₩43.6B, down 33.6% YoY. Revenue ₩438B, down 3.5% YoY.₩43.6B
8/10Medy-ToxOperating profit ₩4.8B, down 24.6% YoY. Revenue ₩68.7B, up 11.4% YoY.₩4.8B
8/10Englewood LabOperating profit ₩8.7B, down 13.2% YoY. Revenue ₩51.9B, down 9.7% YoY.₩8.7B
8/10Korea Airport ServiceOperating profit ₩12.9B, up 12.7% YoY. Revenue ₩174B, up 8.5% YoY.₩12.9B
8/10Sung Kwang BendOperating profit ₩10B, down 7.1% YoY. Revenue ₩64.1B, up 10.4% YoY.₩10B
8/10Woongjin ThinkbigOperating profit ₩3.8B, up 7% YoY. Revenue ₩191B, down 7.3% YoY.₩3.8B
8/10Hy-LokOperating profit ₩17B, up 3.4% YoY. Revenue ₩59.3B, up 9.1% YoY.₩17B
8/10Loss narrowediCRAFTOperating profit: loss narrowed (-₩722M → -₩291M). Revenue ₩40B, up 36.2% YoY.-₩291M
8/10Loss widenediCRAFTOperating profit: loss widened (-₩862M → -₩875M). Revenue ₩35.4B, up 46.9% YoY.-₩875M
8/10Loss narrowedSK BioscienceOperating profit: loss narrowed (-₩37.4B → -₩15.7B). Revenue ₩156B, down 3.8% YoY.-₩15.7B
8/10KoreaGasPreliminary operating results

Insider trades 103

8/10Net saleHanwha EngineNational Pension Service bought 24,985 sh and sold 534,120 sh, Aug 3–5: net sale of 509,135 sh.₩996.5M
8/10Net saleKorea Petro Chemical INDNational Pension Service bought 36,415 sh and sold 102,619 sh, Jul 1–Aug 6: net sale of 66,204 sh.₩4B
8/10SaleCuriox BiosystemsCEO sold 105,500 sh on the market at an average ₩42,723, Aug 12.₩4.5B
8/10BuyPyung HWA IndustrialAn insider bought 1,600,680 sh on the market at an average ₩999, Aug 3–10.₩1.6B
8/10SaleGFI10%+ shareholder sold 120,765 sh on the market at an average ₩9,571, Jul 16–Aug 10.₩1.2B
8/10BuyFinger Story10%+ shareholder bought 81,907 sh on the market at an average ₩4,616, Aug 3–5.₩378.1M
8/10Net saleGS RetailNational Pension Service bought 503,493 sh and sold 531,635 sh, Jul 7–Aug 7: net sale of 28,142 sh.₩13B
8/10BuyYuanta Securities Korea10%+ shareholder bought 52,500 sh on the market at an average ₩4,462, Aug 4–10.₩234.2M
8/10BuyKona IAn insider bought 5,348 sh on the market at an average ₩41,197, Aug 6–7.₩220.3M
8/10BuyNuin TEKCEO bought 217,613 sh on the market at an average ₩915, Aug 6–10.₩199.1M
8/10BuySamyoung S&CDirector bought 44,463 sh on the market at an average ₩3,529, Aug 6–12.₩156.9M
8/10BuyPanstar EnterpriCEO bought 135,000 sh on the market at an average ₩998, Aug 3.₩134.7M
8/10SaleSamsung Electronics Co,President sold 500 sh on the market at an average ₩240,183, Aug 3.₩120.1M
8/10BuyInveniAn insider bought 5,400 sh on the market at an average ₩13,691, Aug 5.₩73.9M
8/10Net buyZungwon En-SysDirector bought 56,576 sh and sold 1,101 sh, Aug 6–11: net buy of 55,475 sh.₩57.4M
8/10BuyODTechCEO bought 19,000 sh on the market at an average ₩2,840, Jul 29–Aug 6.₩54M
8/10Buykt millie seojaeCEO bought 5,000 sh on the market at an average ₩10,360, Aug 7.₩51.8M
8/10BuyDaishin Value REIT10%+ shareholder bought 13,888 sh on the market at an average ₩3,721, Aug 3–7.₩51.7M
8/10BuyMobidaysCEO bought 55,872 sh on the market at an average ₩795, Aug 6–7.₩44.4M
8/10BuyWelcron CompanyPresident bought 45,201 sh on the market at an average ₩967, Aug 3–10.₩43.7M
8/10BuyMegaStudyEduExecutive bought 1,000 sh on the market at an average ₩40,200, Aug 5.₩40.2M
8/10BuySSRAn insider bought 9,835 sh on the market at an average ₩3,861, Aug 3–4.₩38M
8/10BuyGI InnovationCEO bought 5,000 sh on the market at an average ₩7,410, Aug 4.₩37M
8/10BuySpigen KoreaCEO bought 1,291 sh on the market at an average ₩27,859, Jul 31–Aug 10.₩36M
8/10BuySoftcampCEO bought 7,176 sh on the market at an average ₩4,589, Aug 4–10.₩32.9M
8/10SaleITM SemiconductorPresident sold 3,988 sh on the market at an average ₩6,879, Aug 3.₩27.4M
8/10BuyCuriosisPresident bought 3,058 sh on the market at an average ₩8,721, Aug 3.₩26.7M
8/10BuyJoosungAn insider bought 12,000 sh on the market at an average ₩1,485, Jul 24.₩17.8M
8/10BuyArootDirector bought 2,300 sh on the market at an average ₩5,429, Aug 6.₩12.5M
8/10BuyCuriosisCEO bought 1,000 sh on the market at an average ₩11,030, Aug 6.₩11M
8/10BuyGI InnovationExecutive bought 1,250 sh on the market at an average ₩7,990, Aug 11.₩10M
8/10BuyEnbioCEO bought 3,424 sh on the market at an average ₩1,989, Jul 31–Aug 10.₩6.8M
8/10BuyVCCEO bought 2,800 sh on the market at an average ₩2,368, Aug 6.₩6.6M
8/10BuyGI InnovationCEO bought 800 sh on the market at an average ₩8,029, Aug 7.₩6.4M
8/10BuyGI InnovationExecutive bought 470 sh on the market at an average ₩11,726, Apr 30–Aug 11.₩5.5M
8/10BuyGI InnovationPresident bought 673 sh on the market at an average ₩6,900, Jul 31.₩4.6M
8/10BuyAmicogenDirector bought 4,300 sh on the market at an average ₩1,027, Aug 7.₩4.4M
8/10BuySamyoung S&CCEO bought 1,190 sh on the market at an average ₩3,443, Jul 20–Aug 6.₩4.1M
8/10BuyBubangChairman bought 4,000 sh on the market at an average ₩955, Aug 4–6.₩3.8M
8/10BuyMason CapitalAn insider bought 2,523 sh on the market at an average ₩1,128, Aug 3.₩2.8M
All insider trades →

5% holders 88

8/10New 5%Hanwha GalleriaA major holder's stake rose from 0.00% to 54.27% (share consolidation/split).54.27%
8/10Below 5%Hanwha GalleriaA major holder's stake fell from 54.27% to 0.00%.0.00%
8/10New 5%Hanwha VisionA major holder's stake rose from 0.00% to 33.99% (share consolidation/split).33.99%
8/10Below 5%Hanwha VisionA major holder's stake fell from 33.99% to 0.00%.0.00%
8/10Joyworks&A major holder's stake rose from 12.39% to 36.10% (conversion/exercise).36.10%
8/10Below 5%SillaTextileA major holder's stake fell from 15.61% to 0.00%.0.00%
8/10New 5%DeepnoidA major holder's stake rose from 0.00% to 5.49% (open-market buy).5.49%
8/10Below 5%CQVA major holder's stake fell from 14.90% to 0.00% (conversion/exercise).0.00%
8/10Below 5%HanWool & JejuA major holder's stake fell from 14.64% to 1.41% (conversion/exercise).1.41%
8/10ThumbageA major holder's stake fell from 46.92% to 34.16% (rights offering).34.16%
8/10HanWool & JejuA major holder's stake fell from 26.59% to 14.63% (conversion/exercise).14.63%
8/10New 5%OliX PharmaceuticalsA major holder's stake rose from 4.85% to 5.14%.5.14%
8/10New 5%HD Hyundai ElectricBlackRock's stake rose from 4.99% to 5.01%.5.01%
8/10BitmaxA major holder's stake fell from 38.51% to 28.66% (conversion/exercise).28.66%
8/10Below 5%JetemaA major holder's stake fell from 7.84% to 0.00% (conversion/exercise).0.00%
8/10Below 5%DeepnoidA major holder's stake fell from 6.55% to 0.17%.0.17%
8/10Below 5%OSPA major holder's stake fell from 5.94% to 0.00% (bonus issue).0.00%
8/10Below 5%Nexturn&rollkoreaA major holder's stake fell from 7.99% to 3.22% (conversion/exercise).3.22%
8/10The Asia Business DailyA major holder's stake fell from 14.63% to 9.88%.9.88%
8/10Lotte Tour DevelopmentA major holder's stake rose from 7.99% to 12.19%.12.19%
8/10BistosA major holder's stake fell from 12.42% to 8.36% (conversion/exercise).8.36%
8/10Below 5%HanWool & JejuA major holder's stake fell from 5.41% to 1.41% (conversion/exercise).1.41%
8/10HanWool & JejuA major holder's stake fell from 10.85% to 6.85% (conversion/exercise).6.85%
8/10T3 EntertainmentA major holder's stake rose from 18.47% to 22.14%.22.14%
8/10UTIA major holder's stake fell from 31.89% to 28.36% (gift).28.36%
8/10CU Medical SystemsA major holder's stake fell from 15.66% to 12.22% (conversion/exercise).12.22%
8/10NeuromekaA major holder's stake fell from 18.35% to 14.98% (rights offering).14.98%
8/10HanWool & JejuA major holder's stake rose from 5.57% to 8.46% (conversion/exercise).8.46%
8/10Finger StoryA major holder's stake rose from 54.62% to 56.82% (open-market buy).56.82%
8/10Global Tax FreeA major holder's stake fell from 9.93% to 7.74%.7.74%
8/10Essen TechA major holder's stake rose from 76.58% to 78.72% (open-market buy).78.72%
8/10Hanla IMSA major holder's stake rose from 6.74% to 8.84%.8.84%
8/10Hanshin ConstructionA major holder's stake rose from 10.27% to 12.36%.12.36%
8/10ClobotA major holder's stake rose from 5.29% to 7.16% (rights offering).7.16%
8/10Below 5%New Power PlasmaA major holder's stake fell from 5.63% to 3.77% (open-market sale).3.77%
8/10NovarexA major holder's stake fell from 6.97% to 5.13%.5.13%
8/10WoongjinA major holder's stake rose from 8.50% to 10.29%.10.29%
8/10SonokongA major holder's stake fell from 24.52% to 22.78% (conversion/exercise).22.78%
8/10LskairobotA major holder's stake rose from 15.69% to 17.30% (open-market buy).17.30%
8/10Samyoung S&CA major holder's stake rose from 49.66% to 51.24% (open-market buy).51.24%
All 5% holders →

Buybacks 11

8/10TrustHD Construction EquipmentEnded a share buyback trust contract.₩60.9B
8/10TrustOCI Holdings CompanyEnded a share buyback trust contract.₩15B
8/10TrustGradiantSigned a ₩10B trust contract to buy back shares.₩10B
8/10TrustOCI CompanyEnded a share buyback trust contract.₩10B
8/10TrustIncar Financial ServiceEnded a share buyback trust contract.₩7B
8/10TrustMobidaysSigned a ₩1B trust contract to buy back shares.₩1B
8/10DisposalKyochon Food&beveragePlans to dispose of 96,800 sh of treasury stock, Sep 1 to Sep 1.₩365.9M
8/10GradiantShare cancellation
8/10Y2 SolutionShare cancellation
8/10OCI Holdings CompanyBuyback trust ended
8/10InveniShare cancellation

Share issues & bonds 8

8/10CBAprogenConversion price ₩2,552; if all converted, equal to 44.1% of shares outstanding.₩50B
8/10Rights offeringMX RoboticsIssuing 3,289,473 sh of new shares, equal to 16.4% of existing shares.₩10B
8/10CBAprogenConversion price ₩2,552; if all converted, equal to 3.1% of shares outstanding.₩2B
8/10SphereRights offering
8/10MX OnRights offering
8/10AmendedSAMBO IndustrialRights offering
8/10AmendedGeneOne Life ScienceRights offering
8/10AmendedSecern AIRights offering

M&A & spin-offs 7

8/10GraphyA ₩49.2B deal, equal to 123.8% of total assets.₩49.2B
8/10SamyoungA ₩34.7B deal, equal to 17.5% of total assets.₩34.7B
8/10HRSA ₩17.7B deal, equal to 12.4% of total assets.₩17.7B
8/10AmendedExion Group CompanyTangible asset deal
8/10AmendedHLB GlobalMerger
8/10AmendedHRSTangible asset deal
8/10Kumho Petro ChemicalMerger

Exchange actions 6

8/10JK SynapAdministrative issue
8/10GL Pharm TechTrading halt
8/10MedicoxExchange
8/10SK hynixExchange inquiry
8/10SK hynixExchange inquiry
8/10AUKExchange inquiry