TUESDAY Thessaloniki Gas Supply Company (EPA) holds a conference on «Air Conditioning and Natural Gas» at 6 p.m. at the Grand Hotel Palace in Thessaloniki. Deputy Development Minister Giorgos Salagoudis to speak. Tel. 2310.536.688. The Center for Renewable Energy Sources, the Thessaloniki Chamber of Commerce and Industry and the Federation of Industries of Northern Greece to sign a memorandum of understanding for the establishment of a Center for Energy and Environmental Administration, at 10 a.m. at the chamber’s premises. Deputy Development Minister Giorgos Salagoudis to attend. WEDNESDAY Hellenic Forum for the Promotion of Renewable Energy Sources (ELFORES) holds a conference on «Modern City and Viable Transportation,» at 9.30 a.m. at the Divani Caravel Hotel. Transport Minister Michalis Liapis and Development Minister Dimitris Sioufas to speak. Tel. 210.660.3300 or log on to www.cres.gr. Central Macedonia department of the Technical Chamber of Greece (TEE-TKM) holds a conference on «The Next Steps for the Construction of the Thessaloniki Metro and Underwater Tunnel,» at 9.30 a.m. in the Vellidion conference center in Thessaloniki. Tel. 2310.253.480 or log on to www.tee.gr. The Hellenic Organization of Small and Medium-Sized Enterprises and Handicrafts (EOMMEX) in cooperation with Hellenic Association of Young Entrepreneurs (ESYNE) holds a conference on «Difficulties of Young Entrepreneurs – Solutions,» at the Alexandros Hotel in Athens. Tel. 210.749.1100/640.1690. THURSDAY Direction SA holds a conference on «The Effect of Corporate Social Responsibility and Contributive Management on the Value of Corporate Reputation and Business Results,» at 10 a.m. at the Divani Caravel Hotel. Tel. 210.771.2400. The Technical College of Crete holds a conference on «Telecommunications and Multimedia,» at the Agapi Beach Hotel, in Iraklion. To Thursday. Tel. 2810.379.869 or log on to www.epp.teiher.gr/TEMU2005. The Greek Association of Consulting Firms (HELLASCO) holds an international conference on «Business Opportunities for Development in the Balkans: The New Challenge for the Engineering Sector,» at the Porto Carras Hotel in Halkidiki. To Sunday. Consult www.segm2005.conferences.gr. The Central Union of Greek Chambers (KEEE) in cooperation with the Development Ministry holds a conference on «Energy Community: Energy Sufficiency, Development and Entrepreneurship in Europe,» at the Divani Palace Hotel in Kavouri. To Saturday. Tel. 210.363.2702. FRIDAY Naftemboriki newspaper holds a conference on «Development, Tourism and Small and Medium-Sized Enterprises,» at the Capsis Hotel on Rhodes. Relevant ministers to attend. Tel. 210.519.8148-9.