Fri, Aug 23, 2013 12:00 - Baltia Air Lines, Inc. (BLTA: OTCQB) - Tier Change - The symbol, BLTA, no longer is classified as OTC Pink Limited. As of Fri, Aug 23, 2013, BLTA resides in the OTCQB tier. You may find a complete list of tier changes at otcmarkets.com.