On March 28, 2013, the Hochiminh Stock Exchange issued Announcement No.357/2013/TB-SGDHCM to put the stock of House Viet Nam Joint Stock Company (stock code: NVN) as a designated stock.

- Stock NVN of House Viet Nam Joint Stock Company has been designated as of April 01, 2013 according to Decision No.94/2013/QD-SGDHCM dated March 28, 2013 by the Hochiminh Stock Exchange.

- Reason: House Viet Nam Joint Stock Company violated Point 1.1b, Article 19a of Decision No.04/QD-SGDHCM dated April 17, 2009 on the adjustment and supplement of Article 19 and Section II, Appendix 2 of the Listing Regulations on the Hochiminh Stock Exchange. In 2012, Do Thanh Technology Corporation had a loss after tax of 51.32 billion dongs.