---
title: "Qingdao Guolin Technology Group Co.,Ltd. (300786.SZ)"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300786.SZ.md"
symbol: "300786.SZ"
name: "Qingdao Guolin Technology Group Co.,Ltd."
industry: "Heavy Electrical Equipment"
datetime: "2026-05-19T19:19:05.702Z"
locales:
  - [en](https://longbridge.com/en/quote/300786.SZ.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300786.SZ.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300786.SZ.md)
---

# Qingdao Guolin Technology Group Co.,Ltd. (300786.SZ)

## Company Overview

Qingdao Guolin Technology Group Co.,Ltd. engages in the design and manufacture, installation, commissioning, operation, and maintenance of ozone equipment. The company offers ozone generators, hydrogen machine water, oxygen atom generators, air purifiers, glyoxylic acids, gas detecting and ozone concentration analyzers, ball valves, thermostatic chillers, and water-cooled cabinet industrial air conditioning and refrigerated air dryers. It also provides piezoelectric ceramics, such as fuses, cleaning vibrators, piezoelectric vibrators, needles, tire balancers, sorting machines, and automatic performance testing machines, as well as ozone gas delivery systems, electronic grade ozone gas generators, semiconductor ozonated water systems, photovoltaic concentration ozonated water systems, ozone dissolved concentration analyzers, and mobile type ozonated water systems.

| Item | Detail |
|------|--------|
| Industry | Heavy Electrical Equipment |
| Exchange | CN Market |
| Website | [www.china-guolin.com](https://www.china-guolin.com) |

## 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: 2026-05-19T04:30:08.000Z

**Overall: C (0.52)**

**Industry**: Heavy Electrical Equipment

| Metric | Value |
|--------|-------|
| Industry Ranking | 43 / 58 |
| 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 | 13.01% |  |
| Net Profit YoY | 83.61% |  |
| P/B Ratio | 3.15 |  |
| Dividend Ratio | 0.00% |  |

#### Size Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Market Cap | 3516862256.44 |  |
| Revenue | 577164923.69 |  |

#### Multi Score Score: C

| Indicator | Value | Rating |
|-----------|-------|--------|
| ROE | -0.75% | D |
| Profit Margin | -1.47% | D |
| Gross Margin | 17.71% | D |
| Revenue YoY | 13.01% | B |
| Net Profit YoY | 83.61% | A |
| Total Assets YoY | 2.87% | C |
| Net Assets YoY | -0.78% | D |
| Cash Flow Margin | -348.29% | E |
| OCF YoY | 13.01% | B |
| Turnover | 0.32 | D |
| Gearing Ratio | 36.53% | B |

```chart-data:radar
{
  "title": "Longbridge Financial Score - Qingdao Guolin Technology Group Co.,Ltd.",
  "chart_type": "radar",
  "dimensions": [
    {
      "name": "Style Score",
      "grade": "",
      "indicators": [
        {
          "name": "Revenue YoY",
          "value": "13.01%",
          "rating": ""
        },
        {
          "name": "Net Profit YoY",
          "value": "83.61%",
          "rating": ""
        },
        {
          "name": "P/B Ratio",
          "value": "3.15",
          "rating": ""
        },
        {
          "name": "Dividend Ratio",
          "value": "0.00%",
          "rating": ""
        }
      ]
    },
    {
      "name": "Size Score",
      "grade": "",
      "indicators": [
        {
          "name": "Market Cap",
          "value": "3516862256.44",
          "rating": ""
        },
        {
          "name": "Revenue",
          "value": "577164923.69",
          "rating": ""
        }
      ]
    },
    {
      "name": "Multi Score",
      "grade": "C",
      "indicators": [
        {
          "name": "ROE",
          "value": "-0.75%",
          "rating": "D"
        },
        {
          "name": "Profit Margin",
          "value": "-1.47%",
          "rating": "D"
        },
        {
          "name": "Gross Margin",
          "value": "17.71%",
          "rating": "D"
        },
        {
          "name": "Revenue YoY",
          "value": "13.01%",
          "rating": "B"
        },
        {
          "name": "Net Profit YoY",
          "value": "83.61%",
          "rating": "A"
        },
        {
          "name": "Total Assets YoY",
          "value": "2.87%",
          "rating": "C"
        },
        {
          "name": "Net Assets YoY",
          "value": "-0.78%",
          "rating": "D"
        },
        {
          "name": "Cash Flow Margin",
          "value": "-348.29%",
          "rating": "E"
        },
        {
          "name": "OCF YoY",
          "value": "13.01%",
          "rating": "B"
        },
        {
          "name": "Turnover",
          "value": "0.32",
          "rating": "D"
        },
        {
          "name": "Gearing Ratio",
          "value": "36.53%",
          "rating": "B"
        }
      ]
    }
  ]
}
```

## Valuation Analysis

| Metric | Current | Industry Ranking | High | Median | Low |
|--------|---------|-----------------|------|--------|-----|
| PE (TTM) | -414.12 | 57/58 | - | - | - |
| PB | 3.14 | 27/58 | 2.80 | 2.64 | 2.43 |
| PS (TTM) | 6.08 | 49/58 | 5.85 | 5.54 | 5.20 |
| Dividend Yield | 0.00% | - | - | - | - |

## Peer Comparison

| Rank | Name | Profit | Growth | Operation | Security | Cash | Rating |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 01 | NARI-TECH (600406.SH) | B | B | B | C | B | B |
| 02 | DHI (002487.SZ) | B | A | C | B | B | B |
| 03 | HyperStrong (688411.SH) | B | A | B | D | B | B |
| 04 | HAILI WIND POWER (301155.SZ) | C | A | C | B | B | B |
| 05 | COOLTECH POWER (300153.SZ) | C | A | B | D | B | B |

## References

- [Company Overview — Profile, executives, shareholders, business breakdown](https://longbridge.com/en/quote/300786.SZ/overview.md)
- [Financial Reports — Income, balance sheet, cash flow, dividends](https://longbridge.com/en/quote/300786.SZ/norm.md)
- [Related News](https://longbridge.com/en/quote/300786.SZ/news.md)
- [Filings — Company announcements and regulatory filings](https://longbridge.com/en/quote/300786.SZ/filings.md)

---

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