Third Amendment To Agreement of Purchase And Sale And Joint Escrow Instructions

Exhibit 10.1 THIRD AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT
ESCROW INSTRUCTIONS This Third Amendment to Agreement of Purchase and Sale and Joint Escrow Instructions (this " Third Amendment" ) is entered into by CENTURY PROPERTIES HENDERSON 18 LLC, a Nevada limited liability company (" Buyer" ), and PIONEER AMERICAS LLC, a Delaware limited liability company, as successor to Pioneer Chlor Alkali Company Inc. (" Seller" ), effective June 30, 2006. RECITALS : A. Marnell Properties, LLC, a Nevada limited liability company (" Marnell" ), and Seller executed an Agreement of Purchase and Sale and Joint Escrow Instructions (" Purchase and Sale Agreement" ) effective as of June 3, 2005; and, B. By an Assignment And First Amendment ...