Are these GCSEs good enough?

<p>Hi, I'm a UK student and have taken my GCSEs this year. I got 4A*s, 9As, and one B. Are these grades good enough to be considered for HYPSM? I am hoping to take the SAT in December and am aiming for 2300+. I have a range of stellar ECs as well as being class president and having done lots of voluntary work such as working in a care home and in a charity shop. I am also hoping to get AAAA at AS Level (the highest possible grade). I know there will be people with better GCSE grades than myself, but could someone please tell me if mine are good enough to be considered or if they aren't even that important?</p>

<p>Many thanks</p>