Other militants appear to have come from provinces across Yemen.
Most of them are from provinces in east-central China, like Hubei, Hunan, Anhui and Sichuan.
Some hail from provinces like Liaoning, 1,700 miles northeast, or Guangdong, 500 miles southwest.
But serious complaints were also coming from provinces in the north and west.
Four of the seven were from provinces other than Nimruz, which means they were probably migrants.
Yet demand in China is still flat, executives from provinces across China said in interviews.
To be sure, these are very often migrants from provinces like Anhui or Jiangsu, or even further afield.
Lecturers present evidence from "provinces where science has seldom gone — the living room, the street corner, the dog run".
Not surprisingly, the vast majority of recruits come from provinces in the north and northeast, where the insurgency is weaker.
Particularly strong support (and a number of the organisation's fighters and administrators) came from provinces such as Blue Nile and South Kordofan that remain inside north Sudan.
Mr Haq, who is from Jalalabad in eastern Afghanistan, said his forces were ready to strike from provinces sur rounding the capital.
