英语翻译

问题描述:

英语翻译
As sole compensation for the performance of the R&D Services,Company XXX will pay Subsidiary an amount calculated as specified in Exhibit A hereto (“Services Fee”).
Exhibit A下面有下划线,Exhibit A和Services Fee都是黑体字,这段话应该怎么翻译,主要是hereto那部分不会..求高手帮忙!

hereto:to this matter/ document
这是书面用语.
exhibit A是A项.xxx公司将会对其下属子公司支付多少多少的研发赔偿款项,具体计算方法在A项('服务费'项)中有说明