KOYJ. CO.,LTD — Investor Relations & Filings
KOYJ Co., Ltd. specializes in the development, manufacturing, and sale of advanced composite optical films and polymer materials. The company's core offerings include a range of functional components designed for the display sector, such as liquid crystal protection films and other specialized optical parts. Leveraging expertise in thermal extrusion processing and chemical applications, KOYJ focuses on producing differentiated and innovative materials for optoelectronic systems and related applications.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 기타시장안내(관리종목지정우려종목) (시가총액 150억원 미달) | 2026-05-27 | Korean | |
| [기재정정]주요사항보고서(전환사채권발행결정) | 2026-05-26 | Korean | |
| 주요사항보고서(전환사채권발행결정) | 2026-05-22 | Korean | |
| 유형자산취득결정(종속회사의주요경영사항) | 2026-05-21 | Korean | |
| 주요사항보고서(타법인주식및출자증권양수결정) | 2026-05-21 | Korean | |
| 분기보고서 (2026.03) | 2026-05-14 | Korean |
Browse filings by year
9 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 47406238 | 기타시장안내(관리종목지정우려종목) (시가총액 150억원 미달) | 2026-05-27 | Korean | ||
| 47046252 | [기재정정]주요사항보고서(전환사채권발행결정) | 2026-05-26 | Korean | ||
| 46793294 | 주요사항보고서(전환사채권발행결정) | 2026-05-22 | Korean | ||
| 46712533 | 유형자산취득결정(종속회사의주요경영사항) | 2026-05-21 | Korean | ||
| 46700338 | 주요사항보고서(타법인주식및출자증권양수결정) | 2026-05-21 | Korean | ||
| 45774790 | 분기보고서 (2026.03) | 2026-05-14 | Korean | ||
| 38444203 | [기재정정]단일판매ㆍ공급계약체결(자율공시) | 2026-04-29 | Korean | ||
| 38424696 | 자기주식처분결과보고서 | 2026-04-29 | Korean | ||
| 33595266 | 영업(잠정)실적(공정공시) | 2026-04-06 | Korean | ||
| 33134721 | 기타시장안내(관리종목지정우려종목) (시가총액 150억원 미달) | 2026-04-01 | Korean | ||
| 33117091 | 정기주주총회결과 | 2026-03-31 | Korean | ||
| 33012944 | 사업보고서 (2025.12) | 2026-03-23 | Korean | ||
| 33012262 | 감사보고서제출 | 2026-03-23 | Korean | ||
| 32926725 | 주주총회소집공고 | 2026-03-11 | Korean | ||
| 32926499 | 의결권대리행사권유참고서류 | 2026-03-11 | Korean | ||
Market data
Market data not available
Price history
Peer group · Manufacture of plastics products
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
Cryopak Industries Inc.
Develops, manufactures, and markets complete cold chain pac…
|
CYPKF | CA | Manufacturing |
|
CYL CORPORATION BERHAD
Manufacturer of plastic packaging products using advanced m…
|
— | MY | Manufacturing |
|
DAEWON CHEMICAL CO.,LTD
Manufactures synthetic leather, electronic components, func…
|
024890 | KR | Manufacturing |
|
DAIDONG ELECTRONICS.,LTD
Manufacturer of high-tech plastic components for the electr…
|
008110 | KR | Manufacturing |
|
Daios Plastics S.A.
Producer of plastic films and drip irrigation systems for a…
|
DAIOS | GR | Manufacturing |
|
DCKSUNG CO.,LTD
Manufacturer of synthetic leather and composite materials f…
|
004830 | KR | Manufacturing |
|
Deccan Polypacks Ltd
Manufactures HDPE and PP woven sacks and fabrics for indust…
|
531989 | IN | Manufacturing |
|
Deceuninck NV
Designer and manufacturer of PVC and composite systems for …
|
DECB | BE | Manufacturing |
|
Decora S.A.
A leading European manufacturer of flooring solutions and f…
|
DCR | PL | Manufacturing |
|
Dektra Spolka Akcyjna
Producer and wholesale distributor of insulation materials …
|
DKR | PL | Manufacturing |
KOYJ. CO.,LTD via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/15510/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=15510 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=15510 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=15510 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 15510}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for KOYJ. CO.,LTD (id: 15510)"
Report missing filing
Can't find a specific document? Let us know and we'll add it within 24 hours.