EDEXCEL GCE Chemistry Past papers (Request)

[jlhk]

Hi Guys,

I am now looking for Chemistry Past papers, no matter old syllabus or new syllabus.

However, I cannot find the following papers:

Unit 4 June 2004
Unit 5 January 2005, January 2010
Unit 6B(International) January 2005, January 2010

Can anyone give me the above papers?

Many thanks!