---
title: KONNOPRO Co., Ltd. in Yachiyo City, Chiba Prefecture became a wholly-owned subsidiary
description: "This is the NEWS \"KONNOPRO Co., Ltd. in Yachiyo City, Chiba Prefecture became a wholly-owned subsidiary\" page of ROCKY-ICHIMARU Co., Ltd., which boasts the world’s top share for tire curing press valves."
image: https://www.rocky-ichimaru.co.jp/hubfs/rocky_ichimaru_co_jp/images/ogp.png
---

On Tuesday, October 31, [KONNOPRO Co., Ltd.,](https://www.konno-pro.jp/) a precision metal processing company in Yachiyo City, Chiba Prefecture, became a wholly owned subsidiary.

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  "dateModified" : "2024-12-18T03:35:27.270Z",
  "datePublished" : "2023-10-30T15:30:00.000Z",
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