[1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Capital Research and Management Company 95-1411037 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware 5 SOLE VOTING POWER 3,055,000 6 SHARED VOTING POWER NUMBER OF SHARES NONE BENEFICIALL Y]

[1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OFOVE PERSONS (ENTITIES ONLY) SMALLCAP World Fund, 95-4253845 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Maryland 5 SOLE VOTING POWER NONE 6 SHARED VOTING POWER NUMBER OF SHARES NONE BENEFICIALL]