I'm newbie here. Basically I need help in translating a short email to Spanish to talk to Peru, Bolivia and Argentina Post. I suspect they do not respond to us because they do not understand it in English well...
In the meantime, as an exchange, if anyone need any help in short Chinese translation, I will gladly help.

Dear Colleagues

Greetings from Singapore!

We would like to check with you if you have any issues with the enquiries we sent to you as there are numerous enquiries that have lapsed the 60 days period for investigation and we have yet to receive any conclusive replies from your side. Attached is the list of items for the past 6 months (Enquiry period from Oct 2016 Mar 2017) with no conclusive replies.

On a side note, we would like to check on the feasibility of raising enquiries for Registered Articles through GCSS (*it's a system name) and would like to seek your kind opinion.

Looking forward to hearing from you soon.

Thank you.