The Plaza trading system upgraded to version 3.8.5

For the attention of trading members of the sector Standard and the market "Trading in Gazprom shares in the T+0 trading mode" (organizer of trading - Saint-Petersburg Exchange).

Please be advised that on May 19, 2012 the version 3.8.5 of the Plaza trading system was implemented.

Trading in shares of Gazprom in the trading mode T+0 (organizer of trading – Saint-Petersburg Exchange) will be transferred to a new dedicated group of accounts in DCC that differs from delivery group of accounts used for settlement in the sector Standard. Opportunity to use assets in the DCC's account for settlement of trades in the sector Standard will be disabled.

To unify delivery procedures with usage of the accounts of NSD and DCC, all instruments will be given only the NSD's codes as depository codes (issue codes) for clearing procedures. New NSD's issue code will be indicated in all clearing reports where DCC's issue code was indicated before as well as it will be shown in Plaza and Clearing terminal.

The following changes concerning trading in Gazprom shares have been introduced in the new version of the trading system:

• Issue code RU0007661625 (issue code assigned by NSD) will be indicated for Gazprom shares in the list of depository codes in the tables IsCode and Asset.
• Submitting orders and executing trades in Gazprom shares in the T+0 mode using DCC's accounts will be carried out using newly registered accounts and code of trading accounts. The  newly registered accounts and code of trading accounts will be linked to a new group of securities accounts depo_accounts=GZD.
• Each new order and trade in Gazprom shares in the T+0 mode will include NSD's code as the instrument's depository code.
• All participants who will have uncompleted repo operations in shares as of the day when the changes are to be introduced will have to close these operations before maturity. At the moment there are no such trades in the system.
• Gazprom shares will be shown in Asset table with the code GSPBEX for the group of accounts depo_accounts=GZD instead of DCC.
• Option of using the Gazprom shares for delivery in the Standard sector of the Securities market will be disabled.

The following changes concerning displaying balances of securities of the Standard sector of the Securities market have been introduced in the Plaza Trading system:

• In the list of depository codes of the tables IsCode and Asset all issue codes used for the DCC's accounts have been replaced by issue codes assigned by NSD.
• Gazprom shares to be used for delivery in the Standard section with GAZPG code for GTSST listing (trade transactions are not permitted for this ticker) are shown on the accounts of DCC's group of accounts.

The following reports have been modified to include upcoming changes in the reports of the Clearing Center:

DAYASSET Report (Report on the status of trading accounts, collateral accounts and cash registers)

• For DCC accounts in the "Issue code" field (SubCode) security code used for accounting purposes by the National Settlement Depository (NSD) is displayed.
• The "Account number/register number" field (AccCode) can contain the number of account and number of trading register in NSD; the field size has been increased to 30 symbols.
• The "SO/SD" field (OrgType) may contain the "NRD-D" value that stands for the National Settlement Depository.

DAYCONTRACT_STS Report (Clearing report on executed T+N trades and conversion trades)

• "SD/SO" field will display the value "DCC/NRD" that corresponds to the trading sections opened in a depository, i.e. either in DCC, or in the National Settlement Depository (NSD).

DelinfoXX00.dbf  Report (Report on trading accounts / delivery accounts linked to the section of the positions register)

• The size of the "DEPO_ACC" field has been extended to 32 symbols.
• The name of the "CODEDEALER" field has been changed to "ID".
• A "SHORTNAME" field with a size of 12 symbols has been added for NSD information.

Deliv_step1XX00.dbf  Report (Report of execution of trades)

• "ISSUE_CODE" field displays the code of a security used for accounting purpose by the National Settlement Depository.

D.xls Report (Report on the amount of assets required for delivery under T+N trades)

• "Trading account for delivery" field can contain the number of account and number of trading section in the National Settlement Depository (30 symbols).

Table of correspondence of issues codes assigned to instruments of the Standard sector of the Securities Market for accounting purposes by DCC and NSD:

For further information, please contact the Public Relations Department at (495) 363-3232.