I would like to find out the short supply list (that is the specific
list of items on the short supply list) for Guatemala in the recently
passed CAFTA agreement.

Dear youngtae-ga, 

The final draft of CAFTA appears on the US Trade Representative web site.
This page links you to the final draft.
http://ustr.gov/Trade_Agreements/Bilateral/CAFTA/CAFTA-DR_Final_Texts/Section_Index.html

Chapter 3 deals with National Treatment and Market Access for Goods 
On page 3-67 of this document is the Short Supply List (Annex 3.25)
http://www.ustr.gov/assets/Trade_Agreements/Bilateral/CAFTA/CAFTA-DR_Final_Texts/asset_upload_file721_3920.pdf?ht=guatemala%20%22short%20supply%20fabrics%22

You may find this site also of interest.
http://ita.doc.gov/cafta/index.asp

I hope this answers your question. If it does not, or the answer is
unclear, then please ask for clarification of this research before
rating the answer. I shall respond to the clarification request as
soon as I receive it.
Thank you
answerfinder

Search strategy
CAFTA eventually led me to the ITA web site and then onto USTR web site.

Excellent work.