NFEC [NF Energy Saving] SC 13D: Yongquan Bi 2) CHECK THE APPROPRIATE BOX IF
[Yongquan Bi 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ¨ (a) x (b) 3) SEC Use Only 4) SOURCE OF FUNDS PF 5) ¨ 6) CITIZENSHIP OR PLACE OF ORGANIZATION People’s Republic of China]