![]() Tianrun Tianrun Industry Technology (天润工业技术股份有限公司, formerly known as Tianrun Crankshaft) is a company specializing in the production of internal combustion engine crankshafts and connecting rods. | ![]() Revent Precision Engineering Revent Precision Engineering (formerly known as Amtek Auto) is a company that provides precision manufacturing and engineering solutions. | ||
Founding Date | Founding Date 1925 | Founding Date 1954 | Founding Date 1994 |
Type | Type Private | Type Public | Type Private |
Tags | |||
Locations | Locations St. Gallen, CH HQ Guangzhou, CN Rizhao, CN Liberec, CZ | Locations Weihai, CN HQ Wei Fang Shi, CN Weihai, CN Kelkheim (Taunus), DE | |
Employees | Employees 2291% decrease | Employees 3,421 | Employees 839 |
Financial | |||
Revenue (est.) | Revenue (est.) N/A | Revenue (est.) ¥3.9b (FY, 2025) | Revenue (est.) ₹7.3b (FY, 2020) |
Cost of goods | Cost of goods N/A | Cost of goods ¥3.1b (FY, 2025) | Cost of goods ₹5.4b (FY, 2020) |
Gross profit | Gross profit N/A | Gross profit ¥889.4m (FY, 2025) | Gross profit ₹2.1b (FY, 2020) |
Net income | Net income N/A | Net income ¥361.1m (FY, 2025) | Net income (₹10.8b) (FY, 2020) |

Tianrun Industry Technology (天润工业技术股份有限公司, formerly known as Tianrun Crankshaft) is a company specializing in the production of internal combustion engine crankshafts and connecting rods.
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Revent Precision Engineering (formerly known as Amtek Auto) is a company that provides precision manufacturing and engineering solutions.
View company