The club can confirm that an additional 524 tickets will be made available for Saturday's trip to Portsmouth.
After Charlton fans quickly snapped up the initial allocation of 1,629 last month, a request went in to Portsmouth for extra tickets.
The club expect to receive the additional batch of tickets on Tuesday afternoon with a view to placing them on sale once they have been received by the Ticket Office.
Only supporters registered on Charlton's database as of 9am on Monday, November 6th will be able to purchase tickets.
Fans will be notified via the club's social media channels and website before the 524 extra tickets go on sale.
U13: £5 (when accompanied by full paying adult)
Ambulant Disabled: £17 and the helper goes free
Wheelchair bays: £16 and the helper goes free