• 8 自然资源、农业及相关生产职业 / Natural resources, agriculture and related production occupations
    • 82 自然资源、农业及相关生产主管和技术职业 / Supervisors and technical occupations in natural resources, agriculture and related production
      • 823 地下矿工、油气钻探工和相关的职业 / Underground miners, oil and gas drillers and related occupations
        • 8231 地下生产和开发矿工 / Underground production and development miners(B)
        • 8232 石油和天然气钻井工人,服务人员,测试人员及有关人员 / Oil and gas well drillers, servicers, testers and related workers(B)