EX-99.906 CERT 3 c_xnos3.htm EX-99.906 CERT

|  | Section 906 Certifications
I, Charles E. Porter, a Principal Executive Officer of the Funds listed on Attachment A, certify that, to my
knowledge: |
1. | The form N—CSR of the Funds listed on Attachment A for the period ended August 31, 2005 fully
complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2. | The information contained in the Form N—CSR of the Funds listed on Attachment A for the period
ended August 31, 2005 fairly presents, in all material respects, the financial condition and results of
operations of the Funds listed on Attachment A.
Date: November 7, 2005 | /s/ Charles E. Porter
|  | Charles E. Porter
|  | Principal Executive Officer

Section 906 Certifications

I, Steven D. Krichmar, a Principal Financial Officer of the Funds listed on Attachment A, certify that, to my knowledge:

1. The form N—CSR of the Funds listed on Attachment A for the period ended August 31, 2005 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Form N—CSR of the Funds listed on Attachment A for the period ended August 31, 2005 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.

Date: November 7, 2005 /s/ Steven D. Krichmar
Steven D. Krichmar
Principal Financial Officer

| Attachment A
| N—CSR
| Period (s) ended August 31, 2005
2MF | Putnam Small Cap Value Fund
29X | Putnam Floating Rate Income Fund
021 | Putnam Health Sciences Trust
2AZ | Putnam International Capital Opportunities Fund
018 | Putnam Global Natural Resources Fund
061 | Putnam High Income Securities Fund (formerly Putnam High Income Bond Fund)
274 | Putnam New Value Fund
014 | Putnam High Yield Trust
7BF | Putnam Income Strategies Fund (formerly Putnam Income Opportunities Fund)