What China's Vaccine Procurement Data Reveals: A Province‑Level Analysis

Background

Public procurement data for second‑category vaccines were collected from the official websites of 28 Chinese provinces (excluding Hong Kong, Macau, Taiwan, Shandong, Qinghai, and Tibet). All records were uploaded to a public GitHub repository for reuse.

Data‑collection methodology

Search terms such as “省名 第二类疫苗 采购”, “省名 第二类疫苗 公示”, etc., were used on provincial procurement portals. Common obstacles included login‑required sites, broken links, image‑only pages, and missing documents for several regions. The extracted records were saved as CSV files with the following columns:

通用名 (name)

来源 (src)

生产企业 (create_company)

申报企业 (report_company – defaults to the production company if empty)

省 (prov)

中标年份 (year)

Data processing and descriptive statistics

All CSV files were merged with pandas and visualised using echart. The combined dataset contains 1,529 rows covering 167 distinct manufacturers. Basic descriptive statistics are:

count    167.000000
mean      9.143713
std      15.839281
min       1.000000
25%       1.000000
50%       3.000000
75%       9.000000
max      98.000000

The distribution is heavily right‑skewed, indicating that a small number of large manufacturers dominate the market.

Top manufacturers (by number of vaccine entries)

北京科兴生物制品有限公司 – 98

长春长生生物科技有限责任公司 – 91

华兰生物疫苗有限公司 – 72

玉溪沃森生物技术有限公司 – 57

上海生物制品研究所有限责任公司 – 56

大连雅立峰生物制药有限公司 – 51

长春生物制品研究所有限责任公司 – 50

华北制药金坦生物技术股份有限公司 – 46

辽宁成大生物股份有限公司 – 44

北京智飞绿竹生物制药有限公司 – 43

Provincial market share of major suppliers

The share of leading manufacturers (e.g., 长春长生) in the 14 provinces with available data ranges from roughly 10 % to 20 %.

[{'name': '天津', 'value': 14.0625},
 {'name': '辽宁', 'value': 17.647058823529413},
 {'name': '黑龙江', 'value': 13.274336283185843},
 {'name': '安徽', 'value': 9.75609756097561},
 {'name': '新疆', 'value': 16.94915254237288},
 {'name': '江苏', 'value': 14.563106796116504},
 {'name': '江西', 'value': 12.179487179487179},
 {'name': '山西', 'value': 16.52173913043478},
 {'name': '吉林', 'value': 17.857142857142858},
 {'name': '贵州', 'value': 14.17910447761194},
 {'name': '广东', 'value': 13.445378151260504},
 {'name': '四川', 'value': 16.93548387096774},
 {'name': '宁夏', 'value': 17.5},
 {'name': '海南', 'value': 14.285714285714285}]

Limitations

The dataset is incomplete; many provinces lack data because their procurement portals were inaccessible or the documents were unavailable. The current release represents roughly half of the intended coverage.

Further work

Additional provinces will be processed and the updated CSV files will be pushed to the GitHub repository when they become available.