Russian President Vladimir Putin signed a presidential decree on supplementary interim measures to ensure financial stability, aimed at maintaining Russia's financial stability, the Russian presidential Information Bureau said on the 1st. Sources said that the United States and some countries and international organizations following the United States have taken restrictive measures against Russian citizens and legal entities. In response to such unfriendly and actions in violation of international law, Russia has decided to take supplementary measures to protect Russia's national interests and maintain domestic financial stability. The presidential decree stipulates that from March 2, when Russian residents provide ruble loans to personnel of "unfriendly countries" or carry out securities and real estate transactions with them, they shall obtain the permission of the foreign investment supervision committee of the Russian government; When carrying out securities trading, it is necessary to obtain the permission of the Russian Central Bank and the Ministry of Finance and carry out securities trading at the designated exchange; It is prohibited to carry foreign currency cash equivalent to more than US $10000 converted from Russia according to the official exchange rate of the Central Bank of Russia on that day. After Russia took special military action in Ukraine, the United States and other western countries significantly upgraded sanctions against Russia and announced on February 26 that some Russian banks would be excluded from the global Interbank Financial Communication Association (Swift) system. Russian central bank governor nabiulina said in a statement on February 28 that Russia's continuous development of domestic financial infrastructure can ensure its "uninterrupted operation". Russia has developed a financial information transmission system (SPFS) that can replace swift system in China. (Xinhua News Agency)