Exhibit 10.13

FIRST AMENDMENT TO LEASE

THIS FIRST AMENDMENT TO LEASE is made this 30th day of March, 1999, by and
between ONE OLIVER ASSOCIATES LIMITED PARTNERSHIP, a Michigan limited
partnership, whose address is c/o Kojaian Management Corporation, 1400 North
Woodward, Suite 250, Bloomfield Hills, Michigan 48304-2876 (hereinafter referred
to as “Landlord”) and FREEMARKETS ONLINE, INC., a Delaware corporation, whose
address is 130 Seventh Street, Century Building, Suite 500, Pittsburgh,
Pennsylvania 15222 (hereinafter referred to as “Tenant”).

R E C I T A L S:

WHEREAS, Landlord, as Landlord, and Tenant, as Tenant entered into that certain
Lease dated October 21, 1998, (hereinafter referred to as “Lease”), pursuant to
which Tenant leases the 21st and 22nd floors consisting of approximately 36,000
rentable square feet in One Oliver Plaza, Pittsburgh, Pennsylvania (hereinafter
referred to as “Original Premises”) more particularly described therein; and

WHEREAS, Landlord has determined that the Rentable Area of the Original
Premises, as measured is 17,910 rentable square feet, on the twenty-first floor
and 18,309 rentable square feet on the twenty-second floor; and

WHEREAS, Landlord has determined that the Rentable Area of the Building, as
measured is 637,398 rentable square feet; and

WHEREAS, Tenant desires to lease additional premises consisting of seventeen
thousand eight hundred ninety (17,890) rentable square feet on the twenty-third
floor (hereinafter referred to as and designated “Additional Premises” on
Exhibit “A” hereto) and Landlord is willing to lease the Additional Premises to
Tenant upon the terms and conditions set forth herein; and,

WHEREAS, Landlord and Tenant have agreed upon the terms and conditions for the
leasing of the Additional Premises and the Basic Rental thereof and wish to set
forth such agreement as more particularly set forth herein.

NOW, THEREFORE, for good and valuable consideration, the receipt and adequacy of
which are hereby acknowledged, the parties hereto agree as follows:

1.

(a) On or before April 1, 1999, Tenant shall cause its architect to prepare
plans an specifications for the renovations to the Additional Premises and shall
submit the same to Landlord for Landlord’s approval, which approval shall not be
unreasonably withheld or delayed. If the plans and specifications are not
delivered to Landlord by April 1, 1999, the Commencement Date shall nevertheless
be July 1, 1999. Landlord shall promptly obtain a building permit for the
Premises and commence the work within the later of (i) thirty days after
receiving the plans or (ii) ten days after receiving the building permit.

(b) Landlord shall complete the Additional Premises in accordance with Sections
3(b) - 3(e) and Section 5 of Exhibit “D” to the Lease.

(d) Landlord shall perform or cause to be performed, the renovations to the
Additional Premises in accordance with the approved plans and specifications and
Landlord shall pay the cost of the improvements up to a cost of two hundred
fifty-one thousand three hundred sixteen and 93/100 dollars $251,316.93
(hereinafter referred to as the “Tenant Allowance”). All demolition costs,
permits, permit fees, labor, materials, general conditions, competitive
contractor profits and a construction management fee of 5.0% paid to Landlord’s
construction manager shall be charged against the Tenant Allowance.

(e) If the net cost of completing the improvements in accordance with the
approved plans and specifications shall exceed the Tenant Allowance, Tenant
shall pay one-half the excess amount to Landlord within ten (10) days after
Tenant’s receipt of Landlord’s written request for the same, which request shall
specify the nature and amount of the cost for which reimbursement is sought.
Tenant shall pay the remaining one-half the excess before taking possession of
the Premises. In no event shall Landlord be required to commence or continue
such construction if Tenant defaults in its obligation to make the payments
herein required.

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(f) Landlord shall complete the renovations and deliver the Additional Premises
to Tenant on or about July 1, 1999 (hereinafter referred to as the “Effective
Date” ). Effective on the Effective Date and subject to Sections 3(g) and 4 of
Exhibit “D” of the Lease, the Additional Premises shall be deemed part of the
Original Premises for all purposes of the Lease.

2.

Effective upon the date hereof, the Lease shall be amended in part as follows:

 

  (a) Section 1.01: Premises: (Floors 21-23)

Original Premises: approximately 17,910 rentable square feet, located on the
twenty-first floor, and 18,309 rentable square feet located on the twenty-second
floor

Additional Premises: approximately 17,890 rentable square feet, located on the
twenty-third floor

 

  (b) Tenant’s Share of Operating Expenses:        Original
Premises:            5.68%

Tenant’s Share of Taxes:                               Additional
Premises:        2.81%

 

  (c) Section 2.1: “Rentable Area of the Building” shall mean 637,398 rentable
square feet using the 1996 BOMA/ANSI standard of measurement.

 

  (d) Section 4.01: Basic Rental:

Original Premises

 

Term

   Monthly Basic Rental  

March 1, 1999 through

May 31, 1999

   $ -0-   

June 1, 1999 through

February 28, 2000

   $ 60,365.00   

March 1, 2000 through

February 28, 2001

   $ 62,175.95   

March 1, 2001 through

February 28, 2002

   $ 64,047.27   

March 1, 2002 through

February 28, 2003

   $ 65,978.95   

March 1, 2003 through

May 31, 2004

   $ 67,940.81   

Additional Premises

 

Term

   Monthly Basic Rental  

Effective Date through

February 28, 2000

   $ 29,816.67   

March 1, 2000 through

February 28, 2001

   $ 30,711.17   

March 1, 2001 through

February 28, 2002

   $ 31,635.48   

March 1, 2002 through

February 28, 2003

   $ 32,589.62   

March 1, 2003 through

May 31, 2004

   $ 33,558.66   

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3.

(a) All references in Section 37.02 of the Lease to the twenty-third
(23rd) floor shall be replaced with the twenty-fourth (24th) floor.

(b) All references in Section 37.03 of the Lease to the twenty-fourth (24th) and
twenty-fifth (25th) floors shall be replaced with the twenty-fifth (25th) floor
and twenty-sixth (26th) floors.

4.

Exhibit “A” to the Lease is hereby deleted in its entirety and replaced by
Exhibit “A” attached hereto. All references in the Lease to Exhibit “A” shall
hereinafter mean Exhibit “A” hereto.

5.

Each of Landlord and Tenant acknowledges that the Lease is in full force and
effect and neither Landlord nor Tenant is currently in default thereunder.

6.

The Lease, as herein amended, is hereby ratified and confirmed by the parties
and shall remain in full force and effect.

IN WITNESS WHEREOF, the parties hereto have hereunto set their hands and seals
the day and year first set forth above.

 

WITNESS:     ONE OLIVER ASSOCIATES LIMITED
PARTNERSHIP, a Michigan limited partnership /s/ Heather A. Delikat     By:   ONE
OLIVER-GP, INC., Heather A. Delikat       a Michigan corporation     Its:  
General Partner /s/ Anne L. Gatland     By:   /s/ C. Michael Kojaian Anne L.
Gatland       C. Michael Kojaian     Its:   Vice President

“LANDLORD”

 

WITNESS:    

FREEMARKETS ONLINE, INC.

a Delaware corporation

/s/ Illegible     By:   /s/ Illegible       Its:   President

“TENANT”