---
title: "Shenzhen Leading Semiconductor Industry Co.,Ltd. (603991.SH)"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/603991.SH.md"
symbol: "603991.SH"
name: "Shenzhen Leading Semiconductor Industry Co.,Ltd."
industry: "Specialty Chemicals"
datetime: "2026-05-20T20:35:14.870Z"
locales:
  - [en](https://longbridge.com/en/quote/603991.SH.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/603991.SH.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/603991.SH.md)
---

# Shenzhen Leading Semiconductor Industry Co.,Ltd. (603991.SH)

## Company Overview

Shenzhen Original Advanced Compounds Co., Ltd. engages in the research and development, production, and sale of polymer materials in the China and internationally. The company provides polyolefin polymer materials for optical communication cables and optical cables, as well as electrical equipment wires; and insulating polymer materials for power cables in power grid systems. It also offers semiconductor back-end advanced packaging equipment, including cleaning, oven, etching, coating and developing, degumming, slicing, and other equipment.

| Item | Detail |
|------|--------|
| Industry | Specialty Chemicals |
| Exchange | CN Market |

## 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: 2026-05-20T04:30:09.000Z

**Overall: B (0.29)**

**Industry**: Specialty Chemicals

| Metric | Value |
|--------|-------|
| Industry Ranking | 12 / 154 |
| Industry Median | C |
| Industry Average | C |

- **Style**: Growth - Stocks whose main business is in the growth stage.
- **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 | 268.21% |  |
| Net Profit YoY | 147.38% |  |
| P/B Ratio | 5.52 |  |
| Dividend Ratio | 0.01% |  |

#### Size Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Market Cap | 19422510368.18 |  |
| Revenue | 1397380274.83 |  |

#### Multi Score Score: B

| Indicator | Value | Rating |
|-----------|-------|--------|
| ROE | 1.00% | D |
| Profit Margin | 1.33% | C |
| Gross Margin | 16.04% | D |
| Revenue YoY | 268.21% | A |
| Net Profit YoY | 147.38% | A |
| Total Assets YoY | 677.76% | A |
| Net Assets YoY | 1266.99% | A |
| Cash Flow Margin | 230.70% | B |
| OCF YoY | 268.21% | A |
| Turnover | 0.51 | C |
| Gearing Ratio | 26.51% | B |

```chart-data:radar
{
  "title": "Longbridge Financial Score - Shenzhen Leading Semiconductor Industry Co.,Ltd.",
  "chart_type": "radar",
  "dimensions": [
    {
      "name": "Style Score",
      "grade": "",
      "indicators": [
        {
          "name": "Revenue YoY",
          "value": "268.21%",
          "rating": ""
        },
        {
          "name": "Net Profit YoY",
          "value": "147.38%",
          "rating": ""
        },
        {
          "name": "P/B Ratio",
          "value": "5.52",
          "rating": ""
        },
        {
          "name": "Dividend Ratio",
          "value": "0.01%",
          "rating": ""
        }
      ]
    },
    {
      "name": "Size Score",
      "grade": "",
      "indicators": [
        {
          "name": "Market Cap",
          "value": "19422510368.18",
          "rating": ""
        },
        {
          "name": "Revenue",
          "value": "1397380274.83",
          "rating": ""
        }
      ]
    },
    {
      "name": "Multi Score",
      "grade": "B",
      "indicators": [
        {
          "name": "ROE",
          "value": "1.00%",
          "rating": "D"
        },
        {
          "name": "Profit Margin",
          "value": "1.33%",
          "rating": "C"
        },
        {
          "name": "Gross Margin",
          "value": "16.04%",
          "rating": "D"
        },
        {
          "name": "Revenue YoY",
          "value": "268.21%",
          "rating": "A"
        },
        {
          "name": "Net Profit YoY",
          "value": "147.38%",
          "rating": "A"
        },
        {
          "name": "Total Assets YoY",
          "value": "677.76%",
          "rating": "A"
        },
        {
          "name": "Net Assets YoY",
          "value": "1266.99%",
          "rating": "A"
        },
        {
          "name": "Cash Flow Margin",
          "value": "230.70%",
          "rating": "B"
        },
        {
          "name": "OCF YoY",
          "value": "268.21%",
          "rating": "A"
        },
        {
          "name": "Turnover",
          "value": "0.51",
          "rating": "C"
        },
        {
          "name": "Gearing Ratio",
          "value": "26.51%",
          "rating": "B"
        }
      ]
    }
  ]
}
```

## Valuation Analysis

| Metric | Current | Industry Ranking | High | Median | Low |
|--------|---------|-----------------|------|--------|-----|
| PE (TTM) | 1033.76 | 118/154 | 1033.76 | 1008.06 | 924.95 |
| PB | 5.47 | 126/154 | 24.56 | 21.61 | 4.67 |
| PS (TTM) | 13.78 | 138/154 | 41.60 | 14.62 | 12.60 |
| Dividend Yield | 0.01% | 111/154 | 0.01% | 0.01% | 0.01% |

## Peer Comparison

| Rank | Name | Profit | Growth | Operation | Security | Cash | Rating |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 01 | wanhua (600309.SH) | B | B | B | D | A | B |
| 02 | Ganfeng Lithium (002460.SZ) | B | A | D | C | B | B |
| 03 | NHU (002001.SZ) | A | C | C | B | C | B |
| 04 | DING LONG (300054.SZ) | A | B | C | C | B | B |
| 05 | FEILIHUA (300395.SZ) | B | A | D | A | B | B |

## References

- [Company Overview — Profile, executives, shareholders, business breakdown](https://longbridge.com/en/quote/603991.SH/overview.md)
- [Financial Reports — Income, balance sheet, cash flow, dividends](https://longbridge.com/en/quote/603991.SH/norm.md)
- [Related News](https://longbridge.com/en/quote/603991.SH/news.md)
- [Filings — Company announcements and regulatory filings](https://longbridge.com/en/quote/603991.SH/filings.md)

---

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