 In 2006 , China was showing interest in the modernized Su @-@ 35 , and was negotiating with Moscow for a purchase of the fighter . At the 2007 MAKS air show , a number of Chinese delegates were seen taking photos and videos of the Su @-@ 35 prototypes . In November 2010 , Russia , through Rosoboronexport , was ready to resume talks with China on the sale of the Su @-@ 35 . China reciprocated in 2011 by presenting a proposal on the purchase of the fighter . 
