(1) The following information is to be treated as confidential information -

(a) the contents of a bid;

(b) the contents of any instructions to bid even when no bid is submitted;

(c) information which discloses, or from which can be deduced, the identity of the bidder in question and either of the following -

(i) the number of allowances which a bidder wishes to acquire in an auction;

(ii) the price which a bidder is willing to pay for those allowances;

(d) information about, or derived from, one or more bids or instructions to bid which either separately or collectively would be likely to -

(i) give an indication as to the demand for allowances prior to any auction;

(ii) give an indication as to the auction clearing price prior to any auction;