$CHX SEC Filings

Filing Filed On
DRS/A 05 Mar 2018
DRSLTR 05 Mar 2018
DRS/A 07 Feb 2018
DRSLTR 07 Feb 2018
UPLOAD 01 Feb 2018
DRSLTR 12 Jan 2018
DRS/A 12 Jan 2018
UPLOAD 03 Jan 2018
DRS 04 Dec 2017