Quito, January 22, 2014

CERTIFICATE To whom it may concern:

Please, hereby certify that the TALLERES DE ENGENIERÍA "TIMEESCI" Cía. Ltda. Represented by the Mechanical Engineer M. Gilberto Montoya G., has been our supplier of Solar Thermal Energy Systems, both in the Ireland tower, since 1966, and in the Luxembourg tower, since 2004. The Company TALLERES DE INGENIERÍA has provided Our Hotel, in its SOLAR ENGINEERING category, with thermal energy in the generation of hot water for rooms, with a SOLAR power of 315kw/h; Furthermore, a Solar Photothermal plant of 367822 kcal / day, for heating the pool water, located in the penthouse of the Luxembourg tower, of our hotel.

TALLERES DE INGENIERÍA in its MECHANICAL ENGINEERING category, also carried out for our hotel the design and construction of a flat metal structure, with a span of 15.5 meters in length, with a capacity to withstand the load produced by the installation of the photothermal solar plant, for the pool, in the pent house. Likewise, the Montoya Engineering, with its technicians and its work team, has been providing, up to now, the necessary support that our Mintenance Department requires, in the provision and replacement of the different components of the Solar Systems that they are complying with. its useful ife time; as well as, in some event in which the Hotel Maintenance Department deems appropriate.

Av. República de El Salvador, N34 377 and Irlanda Telf 59323972600 Quito - Ecuador