A B777 PLT RPTS NOT SEEING THE SBGR RWY 9L HOLD SHORT LINE.

Narrative

AFTER DISCONNECTING FROM THE TUG ON APRON X; THE COPLT ESTABLISHED COM WITH GND CTL. WE RECEIVED INSTRUCTION TO PROCEED TO RWY 9L VIA TXWY I AND TXWY B AND STAY WITH GND. AFTER TURNING ONTO TXWY B; I SAW WE WERE GOING TO BE BEHIND 2 OTHER ACFT THAT WERE APCHING THE TXWY G. AS WE APCHED THEM FROM BEHIND; WE NOTICED ANOTHER SMALLER ACFT APCHING THE B/G INTXN HEADING TOWARD RWY 9L FROM OUR R. THE COPLT ASKED IF THE SMALLER ACFT WAS GOING TO STOP; WHILE AT THE SAME TIME; I HEARD GND SAY SOMETHING IN PORTUGUESE THAT INCLUDED OUR ACR NAME. SINCE WE RECEIVED NO RADIO CONTACT FROM GND; I ASSUMED THAT WE COULD CONTINUE TAXIING. THE SMALLER ACFT STOPPED; AND WE CONTINUED. AT THIS POINT; THE OTHER 2 ACFT HAD CONTINUED WELL AHEAD OF ME. AS I PROCEEDED TO TAXI; I NOTICED THE RWY 9L/27R SIGN ON MY L AND IMMEDIATELY STOPPED THE ACFT. I WASN'T SURE IF I HAD CROSSED THE HOLD SHORT LINE OR NOT. WE CALLED TWR; AND TWR ASKED WHERE WE WERE GOING. THE COPLT REPLIED; 'ZZZ.' SUBSEQUENTLY; THE TWR LANDED 2 ACFT BEFORE WE TOOK OFF ON RWY 9L. THE LNDG ACFT SEEMED TO HAVE NO PROB WITH CLRNC. THE NEXT EVENING WHEN WE DEPARTED GRU FOR ZZZ; I CHKED OUT THE TXWY G FOR THE HOLD SHORT LINE. THE ONLY ONE I COULD SEE WAS THE ONE FOR ILS CRITICAL AREA. I APPARENTLY PASSED THAT; BUT WAS STILL CLR OF THE RWY.