Becker estimates China IQ at 103.9 from IQ tests. Elite PISA provinces like Shanghai score top but cover rich urban 17% of population. Reweighting BSJZ PISA with national CFPS cognitive data yields 553 PISA or IQ 104.8 vs US Whites. Iodine study Ravens on 38k yields IQ 103.4. Lynn studies on Chinese average 95-105. Age heaping places China top 10 of 107 nations implying IQ 99-105. 91% Han Chinese so samples representative of national genetics. Chinese-American kids IQ 111 vs Whites. Adjustments for provincial gaps yield national IQ 100.55-103.75. Northeast-southwest genetic cline lowers estimate to ~102. Polygenic scores for education match other East Asians. Rural poor provinces like Guizhou rank last in PIRLS reading. National PISA extrapolation via income predicts lower scores. Chinese SAT/ACT match other Asians. Race genetically ties to cognitive ability so Han dominance key. Between-country IQ gaps partly causal from parental resources unlike within West.