笔者就职于成都航空仪表公司经理部，并兼任所属子公司董事。

And pluralizes as director of its subsidiary company. Chengdu Aero-Safety Corp. Is a subsidiary company of CAIC.

定期主持召开项目经理部生产例会，定期组织并主持项目分包商及发包人指定分包商的项目协调会；

Preside routine production meeting periodically; organize and preside project coordinating meeting for subcontractors and Client?s nominated subcontractors.