EX-12 4 e92164rmt_ex12b.htm
Item 12(b)

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Name of Issuer: ROYCE MICRO-CAP TRUST, INC.
In connection with the Report on Form N-CSR of the above-named issuer that is accompanied by this certification, the undersigned hereby certifies, to his knowledge, that:
1. The Report 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 Report fairly presents, in all materials respects, the financial condition and results of operations of the issuer.

Date: March 3, 2010

| /s/Charles M. Royce
| Charles M. Royce
| President

Item 12(b):

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Name of Issuer: ROYCE MICRO-CAP TRUST, INC.
In connection with the Report on Form N-CSR of the above-named issuer that is accompanied by this certification, the undersigned hereby certifies, to his knowledge, that:
1. The Report 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 Report fairly presents, in all materials respects, the financial condition and results of operations of the issuer.

Date: March 3, 2010

| /s/John D. Diederich
| John D. Diederich
| Chief Financial Officer