---
title: "Jiangsu Jiejie Microelectronics Co., Ltd (300623.SZ)"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300623.SZ.md"
symbol: "300623.SZ"
name: "Jiangsu Jiejie Microelectronics Co., Ltd"
industry: "Semiconductor Materials and Equipment"
datetime: "2026-05-19T20:26:49.422Z"
locales:
  - [en](https://longbridge.com/en/quote/300623.SZ.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300623.SZ.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300623.SZ.md)
---

# Jiangsu Jiejie Microelectronics Co., Ltd (300623.SZ)

## Company Overview

Jiangsu JieJie Microelectronics Co., Ltd. engages in the research and development, design, production, and sale of power semiconductor chips and devices in China and internationally. It offers uni-directional and bi-directional thyristors; transient voltage and thyristor surge suppresso, TVS diode array, sidac, zener and small switching diodes, small signal transistor, varistor, and ceramic gas discharge tube; and automotive, low and medium-voltage, and high-voltage MOSFETs. The company also provides rectifier diodes and bridge rectifier; power modules and components; opto-coupler; power IC; and IGBT products.

| Item | Detail |
|------|--------|
| Industry | Semiconductor Materials and Equipment |
| Exchange | CN Market |
| Website | [www.jjwdz.com](https://www.jjwdz.com) |

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


## Longbridge Financial Score™: B
> *Longbridge Financial Score™ — Proprietary multi-factor rating model by Longbridge*
> Updated: 2026-05-19T04:30:08.000Z

**Overall: B (0.35)**

**Industry**: Semiconductor Materials and Equipment

| Metric | Value |
|--------|-------|
| Industry Ranking | 14 / 63 |
| 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**: B

#### Style Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Revenue YoY | 22.77% |  |
| Net Profit YoY | -5.62% |  |
| P/B Ratio | 4.26 |  |
| Dividend Ratio | 0.48% |  |

#### Size Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Market Cap | 26118985845.87 |  |
| Revenue | 3710430776.32 |  |

#### Multi Score Score: B

| Indicator | Value | Rating |
|-----------|-------|--------|
| ROE | 7.72% | B |
| Profit Margin | 12.52% | B |
| Gross Margin | 27.79% | C |
| Revenue YoY | 22.77% | A |
| Net Profit YoY | -5.62% | C |
| Total Assets YoY | 1.97% | C |
| Net Assets YoY | 1.03% | C |
| Cash Flow Margin | 163.54% | B |
| OCF YoY | 22.77% | A |
| Turnover | 0.45 | C |
| Gearing Ratio | 26.87% | B |

```chart-data:radar
{
  "title": "Longbridge Financial Score - Jiangsu Jiejie Microelectronics Co., Ltd",
  "chart_type": "radar",
  "dimensions": [
    {
      "name": "Style Score",
      "grade": "",
      "indicators": [
        {
          "name": "Revenue YoY",
          "value": "22.77%",
          "rating": ""
        },
        {
          "name": "Net Profit YoY",
          "value": "-5.62%",
          "rating": ""
        },
        {
          "name": "P/B Ratio",
          "value": "4.26",
          "rating": ""
        },
        {
          "name": "Dividend Ratio",
          "value": "0.48%",
          "rating": ""
        }
      ]
    },
    {
      "name": "Size Score",
      "grade": "",
      "indicators": [
        {
          "name": "Market Cap",
          "value": "26118985845.87",
          "rating": ""
        },
        {
          "name": "Revenue",
          "value": "3710430776.32",
          "rating": ""
        }
      ]
    },
    {
      "name": "Multi Score",
      "grade": "B",
      "indicators": [
        {
          "name": "ROE",
          "value": "7.72%",
          "rating": "B"
        },
        {
          "name": "Profit Margin",
          "value": "12.52%",
          "rating": "B"
        },
        {
          "name": "Gross Margin",
          "value": "27.79%",
          "rating": "C"
        },
        {
          "name": "Revenue YoY",
          "value": "22.77%",
          "rating": "A"
        },
        {
          "name": "Net Profit YoY",
          "value": "-5.62%",
          "rating": "C"
        },
        {
          "name": "Total Assets YoY",
          "value": "1.97%",
          "rating": "C"
        },
        {
          "name": "Net Assets YoY",
          "value": "1.03%",
          "rating": "C"
        },
        {
          "name": "Cash Flow Margin",
          "value": "163.54%",
          "rating": "B"
        },
        {
          "name": "OCF YoY",
          "value": "22.77%",
          "rating": "A"
        },
        {
          "name": "Turnover",
          "value": "0.45",
          "rating": "C"
        },
        {
          "name": "Gearing Ratio",
          "value": "26.87%",
          "rating": "B"
        }
      ]
    }
  ]
}
```

## Valuation Analysis

| Metric | Current | Industry Ranking | High | Median | Low |
|--------|---------|-----------------|------|--------|-----|
| PE (TTM) | 58.74 | 6/63 | 53.58 | 50.48 | 47.07 |
| PB | 4.46 | 15/63 | 4.57 | 4.17 | 3.88 |
| PS (TTM) | 7.36 | 19/63 | 8.37 | 7.72 | 6.81 |
| Dividend Yield | 0.46% | 12/63 | 0.54% | 0.50% | 0.46% |

## Peer Comparison

| Rank | Name | Profit | Growth | Operation | Security | Cash | Rating |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 01 | NAURA (002371.SZ) | B | B | C | C | B | B |
| 02 | AMEC (688012.SH) | B | A | C | A | B | B |
| 03 | Piotech (688072.SH) | A | A | C | D | A | B |
| 04 | CCTech (300604.SZ) | A | A | B | C | B | B |
| 05 | HWATSING (688120.SH) | B | B | C | C | B | B |

## References

- [Company Overview — Profile, executives, shareholders, business breakdown](https://longbridge.com/en/quote/300623.SZ/overview.md)
- [Financial Reports — Income, balance sheet, cash flow, dividends](https://longbridge.com/en/quote/300623.SZ/norm.md)
- [Related News](https://longbridge.com/en/quote/300623.SZ/news.md)
- [Filings — Company announcements and regulatory filings](https://longbridge.com/en/quote/300623.SZ/filings.md)

---

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