Bulgartransgaz said on Thursday it has resumed its tender for construction of a 484 km natural gas pipeline worth an estimated 2.29 billion levs after a complaint against the procedure was withdrawn. Bulgartransgaz extended the deadline for submitting offers to March 6 from February 15, the Bulgarian gas transmission network operator said in a statement. The tender was suspended on February 14 after power plant equipment maintenance and repair services company Atomenergoremont filed a complaint to the Commission for Protection of Competition challenging Bulgartransgaz's clarifications on issues raised by persons interested in participating in the procedure. Bulgartransgaz's clarifications cover 15 questions by interested parties, mainly related to how the contract will be financed and the payment time frame.