Section 906 Certifications
I, Charles E. Porter, the 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 February 28, 2007 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 February 28, 2007 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.
Date: April 26, 2007
/s/ Charles E. Porter
______________________
Charles E. Porter
Principal Executive Officer
Section 906 Certifications
I, Steven D. Krichmar, the 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 February 28, 2007 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 February 28, 2007 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.
Date: April 26, 2007
/s/ Steven D. Krichmar
______________________
Steven D. Krichmar
Principal Financial Officer
Attachment A
N-CSR
Period (s) ended February 28, 2007
| 29X | Putnam Floating Rate Income Fund |
| 7BF | Putnam Income Strategies Fund |
| 2MF | Putnam Small Cap Value Fund |
| 061 | Putnam High Income Securities Fund |
| 274 | Putnam New Value Fund |
| 014 | Putnam High Yield Trust |
| 021 | Putnam Health Sciences Trust |
| 2AZ | Putnam International Capital Opportunities Fund |
| 018 | Putnam Global Natural Resources Fund |