THIRTEENTH AMENDMENT TO KAISER GROUP INTERNATIONAL, INC. SECTION 401(k) PLAN

Exhibit 10.32

THIRTEENTH AMENDMENT TO

KAISER GROUP INTERNATIONAL, INC.

SECTION 401(k) PLAN

WHEREAS, Kaiser Group International, Inc. (the “Company”), maintains the Kaiser Group International, Inc. Section 401(k) Plan (the “Plan”); and

WHEREAS, Section 10.2 authorizes the Board to amend the Plan;

NOW, THEREFORE, effective January 1, 2006, the Plan is amended as follows:

Exhibit A is amended to delete the reference to Kaiser Analytical Management Services, Inc. as an Excluded Entity.

Executed this 30^th day of December, 2005.