주식회사 제이케이이석연마 / R.S.A

Also known as 제이케이이석연마
주식회사 제이케이이석연마 (R.S.A) is a Korea-based business registered at 인천 계양구 아나지로568번길 (Postal code: 21077). It operates as a head office of a for-profit corporation. It was incorporated at the Incheon District Court, Registry Bureau. 주식회사 제이케이이석연마 (R.S.A) falls under the Manufacturing industry. It operates within the Other Mineral Products sector, specifically focusing on Production of pulverized non-metallic minerals business activities. According to KOBDi Industry Ranking system, 주식회사 제이케이이석연마 (R.S.A) scored 74.54 points and outperforms approximately 79% of companies in the same industry. Recent performance indicators include: Employee growth: -50.00% (industry average: -5.71%).
주식회사 제이케이이석연마는 인천 계양구에 있는 비금속광물 분쇄물 생산업 기업입니다.
534-**-*132* 1201**-0975***

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인천 계양구 아나지로568번길 (21077)
Head office of a for-profit corporation
Manufacturing > Other Mineral Products > Production of pulverized non-metallic minerals
-50.00%
2023-2024
-2.11%
74.54
- (vs. August 2026)
Top 22%
September 2026

R.S.A's KOBDi Score is 74.54 as of Sep 2026, down 3.06 points since Apr 2025; it rose in 1 and fell in 1 of the 12 monthly updates. As of Sep 2026 it is ahead of about 79% of companies in its industry, against 79% in Aug 2026 and 76% in Apr 2025. Its strongest position was 79% (Sep 2026) and its weakest 76% (Aug 2025).

A year earlier, in Aug 2025, its score was 77.60 and it was ahead of about 76% of companies in its industry.

Sep 202674.54ahead of 79%
Aug 202674.54ahead of 79%
Jul 202674.54ahead of 79%
Jun 202674.54ahead of 79%
May 202674.54ahead of 78%
Apr 202674.54ahead of 78%
Mar 202674.54ahead of 78%
Feb 202674.54ahead of 78%
Dec 202574.38ahead of 78%
Aug 202577.60ahead of 76%
Jul 202577.60ahead of 76%
May 202577.60ahead of 76%
Apr 202577.60ahead of 76%

Between 2023 and 2024, the headcount of R.S.A changed by -50.00%, against an average of -5.71% in its industry.

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스톨베르그 앤드 삼일주식회사
Stollberg & samil Co., LTD.		 30–49 Top 22%
태형물산주식회사
TAEHYUNG MOOLSAN		 50–99 Top 21%
21세기실리카 5–9 Top 22%
제일골재 1–4 Top 22%
고창산업개발 5–9 Top 21%















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인천 계양구 아나지로568번길 (21077)
Where is R.S.A located?

R.S.A is registered at 인천 계양구 아나지로568번길, South Korea (postal code 21077).

What industry is R.S.A in?

R.S.A belongs to Manufacturing › Other Mineral Products › Production of pulverized non-metallic minerals.

What is R.S.A's KOBDi Score?

74.54 as of September 2026, ahead of about 79% of companies in its industry.

Who are R.S.A's competitors?

Similar companies include Stollberg & samil, TAEHYUNG MOOLSAN and 21세기실리카.

Which businesses are near R.S.A?

Businesses registered at the same postal code (21077) include 맥테크, Hyundai Laser and 영진글로벌미트. Most work in individual freight transport industry, automobile repair business and other audio equipment manufacturing.

Businesses near R.S.A

Registered at postal code 21077 (아나지로568번길, 계양구). Most businesses here work in individual freight transport industry, automobile repair business and other audio equipment manufacturing.

Other production of pulverized non-metallic minerals companies in 인천

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