Gulnaz Ospanova is a corporate lawyer and part-time lecturer at Kazakh humanitarian law university (KazGUU, Nur-Sultan, Kazakhstan). She obtained her LL.M degree with specializations in European Economic Law and Foreign Trade at Europa Institute of Saarland University in 2009-2010.  After graduation, she participated in two of the largest and important integration processes for Kazakhstan such as Kazakhstan’s accession to the WTO and establishment of the Eurasian Economic Union. In negotiations with counter partners, she defended the interests of Kazakhstan in the financial services sector. Her contribution during these integration processes was appreciated by the Letter of gratitude from the Prime Minister of the Republic of Kazakhstan (2015). She combined all her knowledge and work experience in her Ph.D. thesis, which she successfully defended in 2021 at the Philipps University of Marburg.

• 1. Introduction.- 2. Non-legal barriers to the banking integration.- 3. The EU approach: EU legal barriers for the establishment of the EU single market in banking services/Banking Union.- 4. The EAEU approach: legal barriers in establishment of the EAEU common (single) market in banking services.- 5. Lessons to be learned by the EAEU and the EU Member States.   27

Gulnaz Ospanova is a corporate lawyer and part-time lecturer at Kazakh humanitarian law university (KazGUU, Nur-Sultan, Kazakhstan). She obtained her LL.M degree with specializations in European Economic Law and Foreign Trade at Europa Institute of Saarland University in 2009-2010.  After graduation, she participated in two of the largest and important integration processes for Kazakhstan such as Kazakhstan’s accession to the WTO and establishment of the Eurasian Economic Union. In negotiations with counter partners, she defended the interests of Kazakhstan in the financial services sector. Her contribution during these integration processes was appreciated by the Letter of gratitude from the Prime Minister of the Republic of Kazakhstan (2015). She combined all her knowledge and work experience in her Ph.D. thesis, which she successfully defended in 2021 at the Philipps University of Marburg.

• 1. Introduction.- 2. Non-legal barriers to the banking integration.- 3. The EU approach: EU legal barriers for the establishment of the EU single market in banking services/Banking Union.- 4. The EAEU approach: legal barriers in establishment of the EAEU common (single) market in banking services.- 5. Lessons to be learned by the EAEU and the EU Member States.   27