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The laws and rules that govern the securities industry in the United States derive from a simple and straightforward concept: all investors, whether large institutions or private individuals, should have access to certain basic facts about an investment prior to buying it.

To achieve this, the U.S. Securities and Exchange Commission (SEC) requires public companies to disclose meaningful financial and other information to the public, which provides a common pool of knowledge for all investors to use to judge for themselves if a company's securities are a good investment. Only through the steady flow of timely, comprehensive and accurate information can people make sound investment decisions.


We file annual, quarterly and other reports, proxy statements and other information with the Securities and Exchange Commission and you may access this information by clicking the icon link image below:

Access SEC Filings Now Access Section 16 Filings Now


Interactive Data Filings (XBRL) - Period ended June 30, 2013.

chlo-20130630_pre.xml

chlo-20130630_lab.xml

chlo-20130630_def.xml

chlo-20130630_cal.xml

chlo-20130630.xsd

chlo-20130630.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended March 31, 2013.

chlo-20130331_pre.xml

chlo-20130331_lab.xml

chlo-20130331_def.xml

chlo-20130331_cal.xml

chlo-20130331.xsd

chlo-20130331.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended December 31, 2012.

chlo-20121231_pre.xml

chlo-20121231_lab.xml

chlo-20121231_def.xml

chlo-20121231_cal.xml

chlo-20121231.xsd

chlo-20121231.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended September 30, 2012.

chlo-20120930_pre.xml

chlo-20120930_lab.xml

chlo-20120930_def.xml

chlo-20120930_cal.xml

chlo-20120930.xsd

chlo-20120930.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended June 30, 2012.

chlo-20120630_pre.xml

chlo-20120630_lab.xml

chlo-20120630_def.xml

chlo-20120630_cal.xml

chlo-20120630.xsd

chlo-20120630.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended March 31, 2012.

chlo-20120331_pre.xml

chlo-20120331_lab.xml

chlo-20120331_def.xml

chlo-20120331_cal.xml

chlo-20120331.xsd

chlo-20120331.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended December 31, 2011.

chlo-20111231_pre.xml

chlo-20111231_lab.xml

chlo-20111231_def.xml

chlo-20111231_cal.xml

chlo-20111231.xsd

chlo-20111231.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended September 30, 2011.

chlo-20110930_pre.xml

chlo-20110930_lab.xml

chlo-20110930_def.xml

chlo-20110930_cal.xml

chlo-20110930.xsd

chlo-20110930.xml

Please right click on the link and then left click on "save link as."


Interactive Data Filings (XBRL) - Period ended June 30, 2011.

chlo-20110630_pre.xml

chlo-20110630_lab.xml

chlo-20110630_def.xml

chlo-20110630_cal.xml

chlo-20110630.xsd

chlo-20110630.xml

Please right click on the link and then left click on "save link as."