SOFIA (Bulgaria), August 29 (SeeNews) -Â Municipally-owned public transport company Stolichen Electrotransport, which serves the Bulgarian capital Sofia, said on Thursday that it has launched a tender for awarding a contract for delivery of 30 new electric buses and 10 charging stations for electric vehicles, worth an estimated 38.4 million levs ($21.8 million/19.6 million euro), VAT excluded.