Taiwan Steel Union Co., Ltd. — Investor Relations & Filings
Taiwan Steel Union Co., Ltd. (TSU) is a resource recycling enterprise dedicated to the circular economy through "urban mining" and advanced smelting technologies. The company specializes in the treatment of electric arc furnace (EAF) dust and various zinc-containing industrial wastes. Utilizing high-temperature Waelz kiln processes and waste heat recovery, TSU transforms hazardous by-products into valuable resources, primarily crude zinc oxide. It holds the distinction of being the first hazardous waste recycling organization to obtain UL2809 verification for recycled material content. Beyond zinc recovery, the company has expanded its capabilities to process diverse industrial waste streams, converting them into renewable construction materials. With over three decades of operational expertise, TSU provides technical solutions that address waste disposal challenges while promoting resource sustainability and carbon emission reduction.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 115年04月內部人持股異動(事後) | 2026-05-05 | Chinese | |
| 115年04月董事會成員及持股 | 2026-05-05 | Chinese | |
| 115年04月法人說明會簡報 — 658120260429E001.pdf | 2026-04-29 | English | |
| 115年04月法人說明會簡報 — 658120260429M001.pdf | 2026-04-29 | Chinese | |
| 115年04月法人說明會簡報 | 2026-04-29 | Chinese | |
| 115年第1季財務報告書 — 202601_6581_AI1.pdf | 2026-04-28 | Chinese |
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 41459344 | 115年04月內部人持股異動(事後) | 2026-05-05 | Chinese | ||
| 41456979 | 115年04月董事會成員及持股 | 2026-05-05 | Chinese | ||
| 38426682 | 115年04月法人說明會簡報 — 658120260429E001.pdf | 2026-04-29 | English | ||
| 38426669 | 115年04月法人說明會簡報 — 658120260429M001.pdf | 2026-04-29 | Chinese | ||
| 38426528 | 115年04月法人說明會簡報 | 2026-04-29 | Chinese | ||
| 37981415 | 115年第1季財務報告書 — 202601_6581_AI1.pdf | 2026-04-28 | Chinese | ||
| 38028211 | 代子公司台鋼資源股份有限公司公告董事會代行股東常會 重要決議事項 | 2026-04-28 | Chinese | ||
| 37856308 | 公告本公司董事會通過民國115年第1季合併財務報表 | 2026-04-28 | Chinese | ||
| 36084519 | 115年年報及股東會資料 — 2026_6581_20260529FE2.pdf | 2026-04-24 | English | ||
| 36084382 | 115年年報及股東會資料 — 2026_6581_20260529F13.pdf | 2026-04-24 | Chinese | ||
| 36085259 | 115年年報及股東會資料 — 2026_6581_20260529F02.pdf | 2026-04-24 | Chinese | ||
| 34492694 | 115年年報及股東會資料 — 2026_6581_20260529FE1.pdf | 2026-04-14 | English | ||
| 34489614 | 115年年報及股東會資料 — 2026_6581_20260529F01.pdf | 2026-04-14 | Chinese | ||
| 34470074 | 本公司受邀參加康和證券舉辦之線上法人說明會 | 2026-04-14 | Chinese | ||
| 34470078 | 115年04月法人說明會簡報 | 2026-04-14 | Chinese | ||
Market data
Market data not available
Price history
Peer group · Materials and other waste recovery
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CLEAN HARBORS INC
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CLOSE THE LOOP LTD.
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Taiwan Steel Union 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/52587/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=52587 | 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=52587 | 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=52587 \ -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": 52587}, 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 Taiwan Steel Union Co., Ltd. (id: 52587)"
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