Addendum No. 2 to the Commercial Lease Agreement with respect toareas in the property: Bad Homburger Stern Zeppelinstrasse/2-4 Werner-Reimersstrasse, 61352 Bad Homburg between ELINOR Grundstücksgesellschaft mbH & Co. Apollo KG, entered in the Trade Register at the District Court, Munich under No. HR A 90433, with its business premises at 49 Wolfratshauser Strasse, 82049 Pullach

Exhibit 10.28

Addendum No. 2 to the Commercial Lease Agreement

with respect to areas in the

property: Bad Homburger Stern

Zeppelinstrasse/2-4 Werner-Reimersstrasse, 61352 Bad Homburg

between

ELINOR Grundstücksgesellschaft mbH & Co. Apollo KG,

entered in the Trade Register at the District Court, Munich under No. HR A 90433,

with its business premises at 49 Wolfratshauser Strasse, 82049 Pullach

(hereinafter called “the Lessor”)

and

The company Linotype GmbH, entered in the Trade Register at the District Court,

Bad Homburg v. d. Höhe under No. HR B 10375, with its business premises at

2-4 Werner-Reimers-Strasse, 61352 Bad Homburg,

represented by the Managing Director with sole powers of representation

Mr Frank Wildenberg, born on December 11 1966

Tax No.: 32 381/8136 Tax office: Bad Homburg

VAT ID No.: DE250989136

(hereinafter called “the Lessee”)

Contents

Article 1

Principles

A Lease Agreement is in force between the parties with respect to a property in accordance with article 1 of the Lease Agreement dated April 4-April 11 2008 in the premises “Bad Homburger Stern”, 2-4 Werner-Reimers -Strasse, building component A, in 61352 Bad Homburg as well as annexes in conjunction with Addendum No. 1 dated 1 July-8 July 2009 (“the Lease Agreement”). This Lease Agreement is amended or supplemented by this Addendum No. 2.

This Addendum No. 2 governs the early return of lease areas by the Lessee, here, the fourth floor in building component A and eight parking spaces on 31 May 2011 with the respective amendments effective from 1 June 2011.

Article 2

Amendments/supplements to the Lease Agreement

Article 1, paragraph 1.1, sub 1 of the Lease Agreement stated in article 1 (Principles) is amended to read as follows:

approx. 497.8 m² of office space on the first floor

approx. 496.6 m² of office space on the second floor

approx. 496.9 m² of office space on the third floor

approx. 1,491.3 m² of office space in total

The office space on the fourth floor spanning approx. 384.0 m² (including a roof terrace accounting for one third of the space) is being returned with effect 31 May 2011, thus reducing the total office space from approx. 1,875.3 m² to approx. 1.491.3 m².

Article 1, paragraph 1.3, sub 1 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1 is amended to read as follows:

“The Lessor shall also lease to the Lessee the 42 parking spaces colored in on the enclosed plan (Appendix 2-1 and 2-2) of which 25 are to the east of the building (front, Appendix 2-1, framed in red) and 17 to the west of the building (rear, Appendix 2-2 framed in green). The parking spaces in the Appendix 2-1 and 2-2 framed in blue are being returned”.

Article 3, paragraph 1 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1 is amended to read as follows:

“The Lease Agreement tenancy will be concluded by 31 December 2017”.

Article 3, paragraph 2 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1 is deleted without replacement: “deleted without replacement”.

Article 4, paragraph 2 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1 is amended to read as follows:

“The net monthly rental for the leased property under article 1 shall, from 1 July 2011 be as follows (in EUR)”

Article 4, paragraph 3 of the Lease Agreement stated in article 1 (Principles) is amended to read as follows:

With effect from 1 June 2011, the advance monthly payment of the ancillary expenses for the leased property pursuant to article 1 shall be (EUR):

3.1 For the leased area in accordance with article 1.1.1: EUR 3.10/m²

Article 5, paragraph 1 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1 is amended to read as follows:

The agreed monthly net rent according to § 4 clause 2 increases according to the following schedule (in EUR):

As well as the above net rental, the agreed net advance payment of the ancillary expenses and statutory value added tax in accordance with paragraph 4, sub 3 shall be payable.

Article 7, paragraph 1 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1 is amended to read as follows:

“The Lessee shall provide the Lessor with security for the settlement of all, including future claims by the Lessor under this Lease Agreement including any subsidiary claims and/or claims for compensation on whatever legal ground. The security provision shall be limited to three times the initial monthly rent plus advance payment of ancillary expenses and value added tax. This amounts to EUR 91,683.66 (ninety-one thousand, six hundred and eighty-three euros and sixty-six cents). If the total of the monthly rent plus the advance payment of the ancillary expenses and value added tax varies by more than 10 percent, the contractual parties shall be entitled to request a corresponding adjustment to the security provision, which shall take place promptly but no later than six weeks after receipt of an authorized adjustment request.

On article 12, paragraph 2 of the Lease Agreement stated in article 1 (Principles) in conjunction with Addendum No. 1, the following paragraph 2 shall apply:

“The Lessor shall agree to the Lessee returning the office space on the fourth floor with approx. 384.0 m² (including a roof terrace accounting for one third of the space) early and unrenovated with effect from 31 May 2011. The Lessor shall bear the costs of any necessary technical changes for the desired subsequent leasing of the common area on the fourth floor (e.g., the access system — doors and lift). The EDV cabling shall remain operational and free of charge in the lease unit”.

Article 19, paragraph 5 of the Lease Agreement stated in article 1 (Principles) is amended to read as follows:

“The office space on the fourth floor of building component A with approx. 384 m² (including a roof terrace accounting for one third of the space) shall be leased to KAIZEN Institute Germany GmbH & Co. KG, 2-4 Werner-Reimers-Strasse, 61352 Bad Homburg with effect from 1 June 2011. The subsequent Lessee, KAIZEN Institute Germany GmbH & Co. KG shall be contractually entitled to exercise the right of early termination before 31 December 2013 upon giving 12 months’ notice”.

In the event that KAIZEN Institute Germany GmbH & Co. KG exercises the right of early termination relating to the space returned by the Lessee prematurely, the Lessee shall pay the Lessor a one-off special penalty of EUR 10,000.00 plus VAT, currently 19 percent (EUR 1,900.00) totaling EUR 11,900.00 gross to be received by the Lessor no later than 31 December 2013.

The Lessor shall inform the Lessee after 31 December 2012 whether KAIZEN Institute Germany GmbH & Co. KG has exercised the right of early termination”.

Article 3

Confirmation/Appendixes/no additional verbal agreements/statutory

requirement for the written form

Appendixes to this Addendum are:

Appendix 2-1: layout of the car parking spaces to the front

Appendix 2-2: layout of the car parking spaces to the rear