---
title: "Changshu Tianyin Electromechanical Co., Ltd. (300342.SZ)"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300342.SZ.md"
symbol: "300342.SZ"
name: "Changshu Tianyin Electromechanical Co., Ltd."
industry: "Electrical Components and Equipment"
datetime: "2026-05-20T06:06:37.696Z"
locales:
  - [en](https://longbridge.com/en/quote/300342.SZ.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300342.SZ.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300342.SZ.md)
---

# Changshu Tianyin Electromechanical Co., Ltd. (300342.SZ)

## Company Overview

Changshu Tianyin Electromechanical Co.,Ltd engages in the research and development, production, and sale of refrigerator compressor supporting parts in China. It offers overheat overload protectors; PTC starter relays; junction boxes for various refrigeration appliances; current start relays; starter protectors; plastic suction silencers for various refrigerator compressors; plastic compression spring support seats; and refrigerator compressor frequency conversion controllers. The company also provides radar and aerospace electronics products, such as radar radio frequency simulation systems, ultra-wideband signal capture and analysis systems, star sensors, etc. The company was founded in 2002 and is headquartered in Changshu, China.

| Item | Detail |
|------|--------|
| Industry | Electrical Components and Equipment |
| Exchange | CN Market |
| Website | [www.tyjd.cc](https://www.tyjd.cc) |

## Key Drivers
> *AI-analyzed key factors driving this stock's performance*


## Longbridge Financial Score™: C
> *Longbridge Financial Score™ — Proprietary multi-factor rating model by Longbridge*
> Updated: 2026-05-20T04:30:09.000Z

**Overall: C (0.54)**

**Industry**: Electrical Components and Equipment

| Metric | Value |
|--------|-------|
| Industry Ranking | 115 / 261 |
| Industry Median | C |
| Industry Average | C |

- **Style**: Blend - Stocks in which the company has both growth and mature businesses.
- **Scale**: Small - The company's operation has a high degree of growth and volatility, making it easy to achieve high investment returns.

**Multi Score**: C

#### Style Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Revenue YoY | -20.50% |  |
| Net Profit YoY | -84.99% |  |
| P/B Ratio | 15.30 |  |
| Dividend Ratio | 0.04% |  |

#### Size Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Market Cap | 24018877378.12 |  |
| Revenue | 832393910.79 |  |

#### Multi Score Score: C

| Indicator | Value | Rating |
|-----------|-------|--------|
| ROE | 0.91% | D |
| Profit Margin | 1.72% | C |
| Gross Margin | 24.58% | C |
| Revenue YoY | -20.50% | E |
| Net Profit YoY | -84.99% | E |
| Total Assets YoY | 0.55% | C |
| Net Assets YoY | -0.59% | D |
| Cash Flow Margin | 568.98% | A |
| OCF YoY | -20.50% | E |
| Turnover | 0.38 | C |
| Gearing Ratio | 26.90% | B |

```chart-data:radar
{
  "title": "Longbridge Financial Score - Changshu Tianyin Electromechanical Co., Ltd.",
  "chart_type": "radar",
  "dimensions": [
    {
      "name": "Style Score",
      "grade": "",
      "indicators": [
        {
          "name": "Revenue YoY",
          "value": "-20.50%",
          "rating": ""
        },
        {
          "name": "Net Profit YoY",
          "value": "-84.99%",
          "rating": ""
        },
        {
          "name": "P/B Ratio",
          "value": "15.30",
          "rating": ""
        },
        {
          "name": "Dividend Ratio",
          "value": "0.04%",
          "rating": ""
        }
      ]
    },
    {
      "name": "Size Score",
      "grade": "",
      "indicators": [
        {
          "name": "Market Cap",
          "value": "24018877378.12",
          "rating": ""
        },
        {
          "name": "Revenue",
          "value": "832393910.79",
          "rating": ""
        }
      ]
    },
    {
      "name": "Multi Score",
      "grade": "C",
      "indicators": [
        {
          "name": "ROE",
          "value": "0.91%",
          "rating": "D"
        },
        {
          "name": "Profit Margin",
          "value": "1.72%",
          "rating": "C"
        },
        {
          "name": "Gross Margin",
          "value": "24.58%",
          "rating": "C"
        },
        {
          "name": "Revenue YoY",
          "value": "-20.50%",
          "rating": "E"
        },
        {
          "name": "Net Profit YoY",
          "value": "-84.99%",
          "rating": "E"
        },
        {
          "name": "Total Assets YoY",
          "value": "0.55%",
          "rating": "C"
        },
        {
          "name": "Net Assets YoY",
          "value": "-0.59%",
          "rating": "D"
        },
        {
          "name": "Cash Flow Margin",
          "value": "568.98%",
          "rating": "A"
        },
        {
          "name": "OCF YoY",
          "value": "-20.50%",
          "rating": "E"
        },
        {
          "name": "Turnover",
          "value": "0.38",
          "rating": "C"
        },
        {
          "name": "Gearing Ratio",
          "value": "26.90%",
          "rating": "B"
        }
      ]
    }
  ]
}
```

## Valuation Analysis

| Metric | Current | Industry Ranking | High | Median | Low |
|--------|---------|-----------------|------|--------|-----|
| PE (TTM) | 1674.63 | 215/261 | 364.74 | 135.46 | 79.72 |
| PB | 15.30 | 262/261 | 13.82 | 5.25 | 4.73 |
| PS (TTM) | 28.86 | 267/261 | 24.71 | 9.24 | 7.28 |
| Dividend Yield | 0.03% | 199/261 | 0.37% | 0.34% | 0.13% |

## Peer Comparison

| Rank | Name | Profit | Growth | Operation | Security | Cash | Rating |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 01 | SIEYUAN (002028.SZ) | B | A | B | C | B | B |
| 02 | ZTT (600522.SH) | C | B | A | B | B | B |
| 03 | Deye (605117.SH) | A | B | B | C | B | B |
| 04 | EVE (300014.SZ) | B | B | B | D | B | B |
| 05 | Huayou Cobalt (603799.SH) | B | A | C | D | B | B |

## References

- [Company Overview — Profile, executives, shareholders, business breakdown](https://longbridge.com/en/quote/300342.SZ/overview.md)
- [Financial Reports — Income, balance sheet, cash flow, dividends](https://longbridge.com/en/quote/300342.SZ/norm.md)
- [Related News](https://longbridge.com/en/quote/300342.SZ/news.md)
- [Filings — Company announcements and regulatory filings](https://longbridge.com/en/quote/300342.SZ/filings.md)

---

> **Disclaimer: This article is for reference only and does not constitute any investment advice.**