qoute from wikipedia.org

"The three main producers of pornography in Asia are Japan, Hong Kong, and Thailand.[citation needed] Japan has a large pornography industry (see Pornography in Japan) which features more natural looking women usually wearing little makeup servicing multiple men who tend to be anonymous. Women in some Asian pornography often act as if the sexual act were painful. In Japan, fetish pornography has a great variety, ranging from well-known bukkake to tamakeri. Hong Kong and Thailand produces much print pornography but less video. The men in Thai pornography tend to be younger than in Japanese or American pornography.

In the People's Republic of China (excluding the SAR of Hong Kong), possession of pornography is punishable by 3 years in prison, a fine 0f 20,000 yuan, or even execution for large underground distributors. However, this law is very loosely enforced by the CPC, whose censorship is mostly political. Sentencing has been made before, though.
"

again from same source

"Thailand:
Pornography laws in Thailand are strict and pornography is illegal. Child pornography is illegal apart from the sex trafficking and adolescent prostitution. Other forms of pornography such as yaoi and hentai are illegal but common over the internet."

..However HK might be a safe bet

"Hong Kong:
Illegal if sold or shown to children under 18 of age, or if publicly displayed (except within the confinements of and only visible from inside "a bona fide art gallery or museum"), or if published without being wrapped completely without an "easily noticeable" notice stating that the material may be offensive and may not be distributed to minors"