EXHIBIT 24.3
ATTORNEY CERTIFICATION
I the undersigned, Gabriel Tribaldos, Attorney, hereby certify as follows:
| 1. | José E. Silva and Dianeth M. de Ospino, who signed the attached report, are authorized to sign on behalf of Filippone Business S.A. |
| 2. | The above composition of signatures is binding on Filippone Business S.A. in respect of the attached report/ |
| 3. | The above authorized signatories signed this document before me and were identified by me in person according to an identity card. |
| 4. | The resolution concerning Filippone Business S.A.'s authorized signatories was duly adopted, in accordance with Filippone Business S.A.'s incorporation documents. |
November 1, 2012 Date | /s/ Gabriel Tribaldos Gabriel Tribaldos, Adv. Lic. No. 7192 |
