This reference letter certifies that Daniel Tenchev has worked as a freelance welding inspector for TÜV RHEINLAND - BULGARIA LTD since January 2009. He has performed examinations to approve and qualify welding procedures according to various standards. He has also carried out examinations to certify and recertify welding personnel. Additionally, Mr. Tenchev participated as a Welding Engineer and Welding Inspector on 4 power plant projects in Estonia and France. The author of the letter, Bisera Nikolova, expresses confidence that Mr. Tenchev is a competent inspector in welding activities and testing with extensive experience and qualifications.

1. Направление Индустриални услуги
Business Stream Industrial Services
9/50409.06®TÜV,TUEVundTUVsindeingetrageneMarken.EineNutzungundVerwendungbedarfdervorherigenZustimmung.
ТЮФ Рейнланд България ЕООД
TÜV Rheinland Bulgaria EOOD
Bisera Nikolova
Tel.:+359 2 987 92 91
Fax:+359 2 987 66 05
e-mail:
bnikolova@bg.tuv.com
Sofia, 28/11/2014
Attn:
TO WHOM IT MAY CONCERN
REFERENCE LETTER
This is to certify that MSc Eng. Daniel Tenchev has worked for TÜV RHEINLAND -
BULGARIA LTD as a free-lance inspector on the field of Welding starting from
January 2009.
Mr. Tenchev has been occupied with examinations for qualification of welding
personnel and certification of welding procedures.
He has performed many examinations for approving and qualification of WPQRs
according standards: EN ISO 15609, EN ISO 15614, EN ISO 15613. He has carried
out exams for certification and recertification of welding personnel according to EN
ISO 287-1, EN ISO 14732, EN ISO 13585, EN 13067.
Also, Daniel Tenchev participated as Welding Engineer and Welding Inspector in
following projects:
1. Project NARVA, 2x300 MW CFB Power Plant, Estonia
Contractor: ALSTOM INDIA LIMITED;
Manufacturer: EMCO JSCo – Belene, Bulgaria
2. Project 40292 RENNES
Contractor: STEIN ENERGIE Boilers & Technology - France
Manufacturer: Bulgarian Boiler Technologies Ltd - Sofia, Bulgaria
3. Project 40291 ORLEANS
Contractor: STEIN ENERGIE Boilers & Technology - France
Manufacturer: Bulgarian Boiler Technologies Ltd - Sofia, Bulgaria
4. Project 40290 ANGERS
Contractor: STEIN ENERGIE Boilers & Technology - France
Manufacturer: Bulgarian Boiler Technologies Ltd - Sofia, Bulgaria
I am confident that Mr. Tenchev is a competent inspector in the field of Welding
activities and Welding testing with extensive professional knowledge and experience
and has the necessary work ethics and communication skills.
Kind Regards,
Dipl. Eng. Bisera Nikolova- EWE
Head of Notified Body 1853
Expert / Auditor Business Stream Industrial Services
TÜV Rheinland Bulgaria GmbH
Unternehmensgruppe
TÜV Rheinland Group
Administrative Building Bernard
Izgrev Tower (TETRIX)
23A, Dragan Tsankov Blvd.
1113 Sofia, Bulgaria
Tel: +359 2 987-92-91
Fax:+359 2 987-66-05
Manager:
Dipl.Eng. Stanislav Vladimirov
Chairman of the
Supervisory Board:
Dipl.Eng. Tamas Lovasz Szabo
www.tuv.com