收养16 years old boy，just 失去亲父, how to申请?

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收养16 years old boy，just 失去亲父, how to申请?收养16 years old boy，just 失去亲父, how to申请到加拿大? 母亲失去监护权，以后不可能申请到加拿大探亲的机会。

( d2 B* \7 \0 K! E; |' g" e4 fI have one girl and one boy myself.
+ k1 y* y6 g7 C4 ?+ m) j& X. r
2 I/ ?9 r$ c2 q" K5 l' ?- T! lAny one might know how to do this or help? How to do the paper work in China?

Thanks first.