Firstly, I feel that the sentence must have 'em-dashes' and not the hyphens that you typed there.
Now, answer to your second question - No. The those of... won't fit there because the sentence is about a single charge due to an act of providing false information.
Answer to the first question - yes. It may work in this context.
'Em-dashes' are used to replace commas here. You may simply remove those dashes and put commas along with your option which is and it'll convey the scene.
Wong said one charge, which is providing false information, brought against one of the organizers was for giving police the incorrect number for a street address, though the correct street name was provided.
[Side note: I think it's an indirect speech and thus should have that. Wong said that... If it's not, it should have the quotes - Wong said, "One charge, ..."]