Here is a summary of my research on the policies for working at Xiamen.
By law, I do NOT need to have a Work Permit (就业许可), since I will be working as a Representative (外国企业常驻中国代表机构中的代表).
I do need an Invitation Letter of Duly Authorized Entity (《被授权单位邀请函》) for visa application, from Xiamen Municipal Bureau of Commerce (厦门市商务局).
According to the new policy, this organization does NOT need qualifying check before issuing an Invitation Letter of Duly Authorized Entity (《被授权单位邀请函》).
1. 申请签证,使馆要求厦门政府提供《被授权单位邀请函》。
(3) Registration Certificate of Resident Representative Offices of enterprises of foreign countries(regions) issued by Chinese authorities of industrial and commercial administration, as well as Invitation Letter of Duly Authorized Entity or Confirmation Letter of Invitation issued by relevant Chinese entities as well as Invitation Letter of Duly Authorized Entity or Confirmation Letter of Invitation issued by relevant Chinese entities.
http://ca.china-embassy.org/eng/lsyw/gzrz/vusa/t1071070.htm
2. 作为代表,不需要办理就业《许可证书》
https://zhidao.baidu.com/question/45043188.html
第十条 凡符合下列条件之一的外国人可免办许可证书,入境后凭职业签证及有关证明直接办理就业证:
(一)按照我国与外国政府间、国际组织间协议、协定,执行中外合作交流项目受聘来中国工作的外国人;
(二)外国企业常驻中国代表机构中的首席代表、代表。
3. 厦门市商务局,取消了“Z签”《被授权单位邀请函》资格审核。
因此,可以在厦门市商务局直接办理《被授权单位邀请函》。
厦门市商务局 电话:0592-5302555 邮编:361012 Email:xmtdb@xm.gov.cn 地址:厦门市思明区湖滨北路15号外贸大厦
http://www.xmtdc.gov.cn/jmzx/xwdt/201704/t20170414_1604891.htm
4. 《被授权单位邀请函》
经济技术类
办理单位:厦门市商务局
电话:0592-7703503
地址:湖里区云顶北路842号市行政服务中心二层B厅29号窗口
http://lh.irencai.gov.cn/html/2016/5/13/2016051301304188416.html