PMZ=promise minho&minoz, it means the promise of Lee minho and his fans minoz. On one of a fan meeting before Lee minho  have proposed to build a resalationship that is never lose each other's face with his fans. So minoz of all the world usually  did merciful deeds in the name of him, you know what, this time he donated ₩ 100,000,000 to Nepal but he don't sign his name, he just in the name of minoz. Now let's talk about PMZ it is a charity website set up by Lee minho last year this website sell some goods all the income is given to charity, and he have donate fifty thousand dollars last year  to charity water. Now only the minoz in Korea can buy the goods from this website it doesn't support the international express so if minoz in other country want to buy it must through the student who study in Koreaand and the price is more expensive than the website. HAHA, I bought a PMZ ring and I received it yesterday I like it very much.