On April 9th, 2007 Leaf Shuppan posted an official statement on its homepage announcing that it has filed for bankruptcy on the 9th of April.
According to Icarus Blog:
Yuuhi Publishing, described as a "major publisher of BL novels," has fired off its entire staff without warning...
*Yuuhi publishes BL novels under the imprints "Leaf" and "Ai."
Light Novel Label: