My GRANDSON(DAUGHTER'S SON) WANTS TO ACCOMPANY ON MY TRIP TO CHINA

I AM RAMESH KURUGANTI WITH MY PASSPORT NO.H7279020,VALID UPTO 02/02/2020. I HAVE BEEN INVITED BY A CHINESE COMPANY TO VISIT SHANGHAI,FROM 14TH SEPTEMBER,2012. TO 17TH SEPTEMBER,2012. MY GRANDSON AGED 13 YEARS STUDYING IN EIGHTH CLASS WANTS TO ACCOMPANY ME, ON MY TRIP TO CHINA.IF I AM PREPARED TO BEAR THE FULL COSTS OF MY GRANDSON'S TRIP TO CHINA AND BACK AND STAY IN CHINA, WITH CONFIRMED RESERVATION IN A HOTEL,, IF MY GRANDSON HAVE TO APPLY FOR VISA, AS A TOURIST, KINDLY LET ME KNOW, IF MY DAUGHTER IF SHE GIVE A SEPARATE NO OBJECTION FOR ACCOMPANYING ME TO CHINA LETTER IS ENOGH OR SHE WILL HAVE TO SIGN ON THE VISA APPLICATION TOO?