According to STICON Consulting Engineers official website (www.sticon-engineering.com):
German company STICON Consulting Engineers on 2018/5/20 signed a memorandum of Understanding with U.S. Treasury designated entity Royaye Roze Ksih Investment Company. This entity is sanctioned because it is owned and controlled of Day Bank.
Day Bank is being designated pursuant to E.O. 13224 for being owned or controlled by, and for assisting in, sponsoring, or providing financial, material, or technological support for, or financial or other services to or in support of, Martyrs Foundation, an Iranian parastatal organization that channels financial support from Iran to several terrorist organizations in the Levant, including Hizballah, Hamas, and the Palestinian Islamic Jihad (PIJ);
Source » presstv