| RONALD R. CHADWICK, P.C. |
| Certified Public Accountant |
| 2851 South Parker Road, Suite 720 |
| Aurora, Colorado 80014 |
| Telephone (303)306-1967 |
| Fax (303)306-1944 |
| May 15, 2013 |
| |
| |
| U.S. Securities and Exchange Commission |
| 450 Fifth Street NW |
| Washington, D.C. 20549 |
| |
| Re: Joymain International Development Group Inc. |
| (formerly Advento, Inc.) |
| SEC File No. 333-174607 |
On May 15, 2013 my appointment as auditor for Joymain
International Development Group Inc. ceased. I have read Joymain International
Development Group Inc.’s statements included under Item 4.01 of its Form 8-K
dated May 15, 2013 and agree with such statements, insofar as they apply to me.
| Very truly yours, |
| |
| Ronald R. Chadwick, P.C. |
| Ronald R. Chadwick, P.C. |
| Certified Public Accountant |
