- Name of issuer: Network Infrastructure Services JSC
- Stock code: NIS
- Securities type: Common stock
- Name of connected institution: Hai Hoa Investment JSC
- Name of PDMR/Director in the listed company: Nguyen Xuan Duc
- Position in the listed company: Chair of the Board
- Number of shares held by connected person/institution before transaction: 0 share
- Number of shares to be acquired: 8,400 shares
- Nature of transaction: through negotiation or continuous order matching
- Purpose of transaction: Investment
- Expected Start date of transaction: 18/12/2013
- Expected End date of transaction: 16/01/2014