Certificate of RegistrationThis certifies that the Health, Safety, Security, and Environmental Management System of

SI Group, Inc.2750 Balltown Road

Niskayuna, New York, 12301, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

RC14001:2015 & ISO14001:2015Scope of Registration:

DESIGN, MANUFACTURE AND SALE OF ALKYLPHENOLS,SPECIALTY PHENOLIC AND ALKYLPHENOLIC RESINS AND OTHER CHEMICAL INTERMEDIATES

Carl Blazik,Director, Technical Operations & Business Units,NSF-ISR, Ltd.

Page 1 of 2

Certificate Number: C0098999-RC4Certificate Issue Date: 18-DEC-2018Registration Date: 11-DEC-2018Expiration Date *: 09-SEP-2021

This Annex is only Valid in connection with the above-mentioned certificate issued by NSF-ISR

Page 2 of 2

ANNEX PAGE FOR CERTIFICATE REGISTRATION NUMBER C0098999-RC4

CERTIFICATE ISSUE DATE: 18-DEC-2018CERTIFICATE EXPIRATION DATE: 09-SEP-2021

SI Group, Inc.2750 Balltown Road

Niskayuna, New York, 12301, United States

Remote Location: SI Group, Inc. - Orangeburg- C0379275

725 Cannon Bridge RoadOrangeburg, South Carolina, 29116, United States

Scope:Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Remote Location: SI Group, Inc. - Texas- C0396908

702 FM 523Freeport, Texas, 77541, United States

Scope:Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Remote Location: SI Group, Inc. - Rotterdam Junction- C0396910

1000 Main StreetRt 55

Rotterdam Junction, New York, 12150, United States

Scope:Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Remote Location: SI Group, Inc. - Tennessee- C0396914

380 Chemwood DriveNewport, Tennessee, 37821, United States

Scope:Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Remote Location: SI Group, Inc.- Niskayuna- C0396918

2750 Balltown RoadSchenectady, New York, 12309, United States

Scope:Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Certificate of RegistrationThis certifies that the Health, Safety, Security, and Environmental Management System of

SI Group, Inc. - Orangeburg725 Cannon Bridge Road

Orangeburg, South Carolina, 29116, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

RC14001:2015 & ISO14001:2015Scope of Registration:

Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Carl Blazik,Director, Technical Operations & Business Units, NSF-ISR, Ltd.

Certificate Number: C0098999-RC4-C0379275

Certificate Issue Date: 18-DEC-2018Registration Date: 11-DEC-2018

Expiration Date *: 09-SEP-2021

Certificate of RegistrationThis certifies that the Health, Safety, Security, and Environmental Management System of

SI Group, Inc. - Texas702 FM 523

Freeport, Texas, 77541, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

RC14001:2015 & ISO14001:2015Scope of Registration:

Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Carl Blazik,Director, Technical Operations & Business Units, NSF-ISR, Ltd.

Certificate Number: C0098999-RC4-C0396908

Certificate Issue Date: 18-DEC-2018Registration Date: 11-DEC-2018

Expiration Date *: 09-SEP-2021

Certificate of RegistrationThis certifies that the Health, Safety, Security, and Environmental Management System of

SI Group, Inc. - Rotterdam Junction1000 Main Street

Rt 55Rotterdam Junction, New York, 12150, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

RC14001:2015 & ISO14001:2015Scope of Registration:

Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Carl Blazik,Director, Technical Operations & Business Units, NSF-ISR, Ltd.

Certificate Number: C0098999-RC4-C0396910

Certificate Issue Date: 18-DEC-2018Registration Date: 11-DEC-2018

Expiration Date *: 09-SEP-2021

Certificate of RegistrationThis certifies that the Health, Safety, Security, and Environmental Management System of

SI Group, Inc. - Tennessee380 Chemwood Drive

Newport, Tennessee, 37821, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

RC14001:2015 & ISO14001:2015Scope of Registration:

Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Carl Blazik,Director, Technical Operations & Business Units, NSF-ISR, Ltd.

Certificate Number: C0098999-RC4-C0396914

Certificate Issue Date: 18-DEC-2018Registration Date: 11-DEC-2018

Expiration Date *: 09-SEP-2021

Certificate of RegistrationThis certifies that the Health, Safety, Security, and Environmental Management System of

SI Group, Inc.- Niskayuna2750 Balltown Road

Schenectady, New York, 12309, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

RC14001:2015 & ISO14001:2015Scope of Registration:

Design, manufacture and sale of alkylphenols, specialty phenolic and alkylphenolic resins, pharmaceuticals, antioxidants and other chemical intermediates.

Carl Blazik,Director, Technical Operations & Business Units, NSF-ISR, Ltd.

Certificate Number: C0098999-RC4-C0396918

Certificate Issue Date: 18-DEC-2018Registration Date: 11-DEC-2018

Expiration Date *: 09-SEP-2021