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Contributors KST Law, in cooperation with Kinstellar

KST Law, in cooperation with Kinstellar
Contact Information
  • Address: Windowist Tower Reşitpaşa Mah. Eski Büyükdere Cad. No: 26 İç Kapı No: 141 Kat: 18 Maslak 34467 Sarıyer, Istanbul, Turkey
  • Email: [email protected]
  • Phone: +90 212 214 78 10
  • Website: www.ksthukuk.com
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KST LAW is an independent, Istanbul-based full-service corporate law firm operating in cooperation with Kinstellar.

We offer comprehensive legal services across all areas of business law, with a strong focus on cross-border transactions, foreign investments, and regulatory matters. Our team delivers practical and solution-oriented legal advice to clients in a wide range of sectors, including energy, natural resources, manufacturing, construction, IT, automotive, FMCG, and insurance.

We have extensive experience advising leading Turkish conglomerates, multinational companies, private equity and investment funds, and financial institutions on their investments, M&A transactions, financing arrangements, and complex commercial projects within the framework of Turkish law.

Key Contacts

Edmund Emre Özer
Edmund Emre Özer
Partner
Banking͵ Finance & Capital Markets, Energy & Natural Resources, M&A͵ Corporate and Private Equity
[email protected]
Mert Elcin
Mert Elcin
Partner
Banking͵ Finance & Capital Markets, M&A͵ Corporate and Private Equity, Projects & Infrastructure, Restructuring & Insolvency
[email protected]
Sinan Diniz
Sinan Diniz
Partner
Competition & State Aid
[email protected]
Edmund Emre Özer
Edmund Emre Özer
Partner
Banking͵ Finance & Capital Markets, Energy & Natural Resources, M&A͵ Corporate and Private Equity
[email protected]
Mert Elcin
Mert Elcin
Partner
Banking͵ Finance & Capital Markets, M&A͵ Corporate and Private Equity, Projects & Infrastructure, Restructuring & Insolvency
[email protected]
Sinan Diniz
Sinan Diniz
Partner
Competition & State Aid
[email protected]
Koray Söğüt
Koray Söğüt
Partner
Dispute Resolution
[email protected]
Eren Ertem
Eren Ertem
Managing Associate
Banking͵ Finance & Capital Markets, Employment & Labour Law, M&A͵ Corporate and Private Equity, White-Collar Crime
[email protected]
Yağmur Özen
Yağmur Özen
Managing Associate
Banking͵ Finance & Capital Markets, Data & Cybersecurity, M&A͵ Corporate and Private Equity, Projects & Infrastructure, Real Estate͵ Construction & Planning
[email protected]
Seda Nur Ün
Seda Nur Ün
Senior Associate
Dispute Resolution
[email protected]
Ceren Ceyhan
Ceren Ceyhan
Senior Associate
Competition & State Aid, Compliance͵ Risk & Sensitive Investigations, Data & Cybersecurity, Technology͵ Media & Telecommunications, White-Collar Crime
[email protected]
Sıla Özge Şaylı
Sıla Özge Şaylı
Senior Associate
Banking͵ Finance & Capital Markets, Employment & Labour Law, Energy & Natural Resources, Environmental͵ Social and Governance, M&A͵ Corporate and Private Equity
[email protected]
Nihal Dilan Cantürk
Nihal Dilan Cantürk
Associate
Banking͵ Finance & Capital Markets, Dispute Resolution, Environmental͵ Social and Governance, M&A͵ Corporate and Private Equity
[email protected]
Fırat Erin
Fırat Erin
Associate
Banking͵ Finance & Capital Markets, Compliance͵ Risk & Sensitive Investigations, M&A͵ Corporate and Private Equity, Projects & Infrastructure
[email protected]
Ömer Faruk Kılıç
Ömer Faruk Kılıç
Associate
Dispute Resolution, Employment & Labour Law, Energy & Natural Resources, M&A͵ Corporate and Private Equity
[email protected]
Simru Tayfun
Simru Tayfun
Associate
Competition & State Aid
[email protected]
Helin Akbulut
Helin Akbulut
Associate
Banking͵ Finance & Capital Markets, M&A͵ Corporate and Private Equity, Projects & Infrastructure, Real Estate͵ Construction & Planning
[email protected]
Hatice Nur Arslan
Hatice Nur Arslan
Associate
Banking͵ Finance & Capital Markets, Data & Cybersecurity, IP&T, M&A͵ Corporate and Private Equity, Technology͵ Media & Telecommunications
[email protected]
Osman Tuğberk Çakırca
Osman Tuğberk Çakırca
Associate
Competition & State Aid, Compliance͵ Risk & Sensitive Investigations, Employment & Labour Law, M&A͵ Corporate and Private Equity
[email protected]
Beyza Arlı
Beyza Arlı
Associate
Competition & State Aid
[email protected]
Simge Erdem
Simge Erdem
Legal Intern
Banking͵ Finance & Capital Markets, Energy & Natural Resources, Environmental͵ Social and Governance, M&A͵ Corporate and Private Equity, Projects & Infrastructure
[email protected]
Selen Yağmur Yüksek
Selen Yağmur Yüksek
Legal Intern
Legal Intern
[email protected]
Kaan Selvi
Kaan Selvi
Legal Intern
Banking͵ Finance & Capital Markets, Compliance͵ Risk & Sensitive Investigations, M&A͵ Corporate and Private Equity
[email protected]

Amendments Related to Unlicensed Electricity Generation in Türkiye

The regulations on unlicensed electricity generation in Türkiye were amended by the Regulation Amending the Regulation on Unlicensed Generation in the Electricity Market ...
KST Law, in cooperation with Kinstellar
Nihal Dilan Cantürk
Helin Akbulut
02.12.2025

Quick Read: Data Protection Law Updates in Türkiye – October 2025

In October 2025, the Turkish Personal Data Protection Authority organised several events and announced four data breach notifications.
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Simge Erdem
Hatice Nur Arslan
20.11.2025

UNHCR–Göç İdaresi Anlaşmasına Dayalı Yurt Dışına Kişisel Veri Aktarımına Kurul İzni

Kişisel Verileri Koruma Kurulu, 11 Kasım 2025 tarihinde internet sitesinde, İçişleri Bakanlığı Göç İdaresi Başkanlığı ile Birleşmiş Milletler Mülteciler Yüksek Komiserliği ...
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Simge Erdem
20.11.2025

First DPA Permission Granted for Cross Border Transfer in Türkiye under Non-International Mechanism

On 11 November 2025, the Turkish Personal Data Protection Board announced on its official website that on 21 October 2025 it granted permission for ...
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Simge Erdem
12.11.2025

KST Rekabet Gündemi – Ekim Ayında Neler Oldu?

Rekabet Kurumu Ekim ayında aldığı bir dizi önemli kararla piyasa bütünlüğünü korumaya yönelik kararlı tutumunu sürdürdü.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
11.11.2025

Quick Read: Competition Law Updates in Türkiye – October 2025

In October, the Turkish Competition Authority continued its firm commitment to safeguarding market integrity through a series of significant decisions. The scope of its enforcement was broad, spanning major cartel activity in the labour market (pharmaceutical sector), abuse of intellectual property rights to exclude competitors (Tetra Pak), and a massive fine for breach of commitments in the glass recycling industry (Şişecam).
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
07.11.2025

A New Era for Cybersecurity in Türkiye: Appointment of First Head of Cybersecurity Announced

On 24 October 2025, Ümit Önal was appointed as the head of Türkiye’s Cybersecurity Presidency, pursuant to Articles 2 and 3 of Presidential Decree No. 3, as published in the Official Gazette No. 33057.
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Selen Yağmur Yüksek
28.10.2025

Quick Read: Data Protection Law Updates in Türkiye – September 2025

In September 2025, the Turkish Personal Data Protection Authority issued one decision, organised several events, and announced one data breach notification. Below is a summary of key developments.
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Simge Erdem
Hatice Nur Arslan
22.10.2025

Turkish Constitutional Court (Pilot Judgement): Prolonged Seizure Annotations under Article 128 Breach Property and Remedy Rights

In its decision dated 12 December 2024 and published in the Official Gazette No. 33046 on 13 October 2025, the Constitutional Court examined the constitutionality of long-term seizure measures imposed under Article 128 of the Criminal Procedure Code through land registry annotations.
KST Law, in cooperation with Kinstellar
Hatice Nur Arslan
Koray Söğüt
Ömer Faruk Kılıç
16.10.2025

Quick Read: Competition Law Updates in Türkiye – September 2025

In September, the Turkish Competition Authority continued to pursue an assertive enforcement agenda, initiating new investigations in the music streaming platform, meal card, ready-mix concrete, and dairy sectors.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
14.10.2025

Rekabet Yasağı Uyuşmazlıklarında Asliye Ticaret Mahkemesi’nin Görevli Olduğuna Karar Verildi

12 Eylül 2025 tarihinde yayınlanan Resmi Gazete ile Yargıtay İçtihatları Birleştirme Büyük Genel Kurulu’nun rekabet yasağına ilişkin uyuşmazlıklarda görevli mahkeme belirlemesine ilişkin bağlayıcı kararı yayımlandı.
KST Law, in cooperation with Kinstellar
Hatice Nur Arslan
Koray Söğüt
Ömer Faruk Kılıç
29.09.2025

Jurisdiction in Non-Compete Disputes Clarified by Turkish Court of Cassation

On 12 September 2025, a landmark decision of the Turkish Court of Cassation’s Board for the Unification of Case Laws has been published in the Official Gazette.
KST Law, in cooperation with Kinstellar
Hatice Nur Arslan
Koray Söğüt
Ömer Faruk Kılıç
29.09.2025

The Accumulating Cost of Non-Compliance: A Deeper Look at the TCA’s Daily Fines

In the world of competition law, providing accurate and timely information to a regulator is not just a formality—it is a critical legal obligation.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
25.09.2025

KST Rekabet Gündemi - Ağustos Ayında Neler Oldu?

Ağustos ayında Rekabet Kurulu, çimento, gıda, tersanecilik ve dijital piyasalar gibi çeşitli sektörlerde başlattığı soruşturmalarla, önceki aylarda sergilediği aktif tutumu sürdürdü.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
19.09.2025

Quick Read: Competition Law Updates in Türkiye – August 2025

In August, the Turkish Competition Authority maintained its proactive stance, launching investigations across diverse sectors including cement, food, shipbuilding, and digital markets.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
17.09.2025

Quick Read: Data Protection Law Updates in Türkiye – August 2025

In August 2025, the Turkish Personal Data Protection Authority published one announcement, issued two global updates bulletins, organised two seminars, and disclosed two data breach notifications.
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Hatice Nur Arslan
16.09.2025

Data Protection Law Updates in Türkiye – July 2025

In July 2025, the Turkish Personal Data Protection Authority (the ‘DPA’) published several bulletins, organised two seminars, and announced three data breach notifications.
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Hatice Nur Arslan
02.09.2025

KST Rekabet Gündemi - Temmuz Ayında Neler Oldu?

Temmuz ayında Rekabet Kurulu, hem geleneksel hem de dijital pazarlarda rekabet hukukunun etkin şekilde uygulanmasına yönelik kararlılığını sürdürdü.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
18.08.2025

Competition Law Updates in Türkiye – July 2025

In July, the Turkish Competition Authority maintained its active stance enforcing competition law, notably by publishing a long-anticipated reasoned decision regarding a major case involving nearly 50 undertakings concerning competition infringements in the labour market—a key area under scrutiny in recent years.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
15.08.2025

KST Rekabet Gündemi – Haziran Ayında Neler Oldu?

Rekabet Kurulu Haziran ayında özellikle dijital platformlar ve tüketici elektroniği sektörüne yönelik rekabet hukuku endişeleriyle gündemdeydi.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
25.07.2025

Competition Law Updates in Türkiye – June 2025

In June, the Turkish Competition Authority continued its proactive efforts, particularly addressing competition law concerns in sectors such as digital platforms and, foremost, the consumer electronics industry.
KST Law, in cooperation with Kinstellar
Sinan Diniz
Simru Tayfun
Beyza Arlı
24.07.2025

Data Protection Law Updates in Türkiye – June 2025

In June 2025, the Turkish Personal Data Protection Authority (the “DPA”) organised several events, announced five data breach notifications, and published one principal decision.
KST Law, in cooperation with Kinstellar
Ceren Ceyhan
Simge Erdem
Hatice Nur Arslan
24.07.2025
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