Investor-State Arbitration Against China: Treaty Claims for Foreign Investors

Introduction

A foreign investor considering a claim against China starts from a question that has no single answer: which treaty, and which consent clause. China maintains one of the largest bilateral investment treaty (BIT) networks in the world — well over a hundred treaties — but the older and newer generations of those treaties give very different scope to investor-state arbitration, and China's accession to the ICSID Convention carries a narrowing reservation. This article explains the three layers that decide whether a treaty claim is even available.

ICSID Accession, and the Article 25(4) Restriction

China signed the ICSID Convention on 9 February 1990 and it entered into force for China on 6 February 1993. But China's ratification came with a notification under Article 25(4) of the Convention: the People's Republic of China would only consider submitting to ICSID jurisdiction disputes over compensation resulting from expropriation and nationalization. The notification does not amend the treaty, but it defines the consent China has signalled to ICSID, and it matters whenever a tribunal has to interpret how far China's consent under a given BIT reaches.

The First- and Second-Generation BITs

China's BIT programme has two distinct phases, and the boundary is roughly the late 1990s:

• First-generation BITs (the 1980s and most of the 1990s) consent to investor-state arbitration only for disputes over the amount of compensation for expropriation. Liability for the expropriation itself is generally not arbitrable under those treaties.
• Second-generation BITs — the pivot is usually dated to the 1998 China–Barbados BIT — consent to arbitration over any dispute concerning an investment, opening the door to claims for breach of fair-and-equitable treatment, full protection and security, umbrella clauses and more.

This means the treaty an investor relies on is decisive before the merits are ever reached. An investor from a country with only a first-generation BIT cannot expand the consent simply by pointing at a newer Chinese treaty with a different state.

The Procedural Filters Built Into the Treaties

Even under a second-generation BIT, a claim must pass the treaty's own procedural gates. Many Chinese BITs include a fork-in-the-road provision — an investor who submits a dispute to a domestic court or a previously agreed forum may lose the arbitration route — and several require a preliminary negotiation or cooling-off period. Some agreements also condition arbitration on the dispute being a defined "investment dispute" and on the investor qualifying as an "investor" of the other contracting state, including the now-standard question of whether a shell or letterbox company in the home state actually qualifies.

The Record Is Thin, and Time Bars Are Real

Very few investor-state cases have been brought against China. The most frequently cited is Ansung Housing Co., Ltd. v. People's Republic of China (ICSID Case No. ARB/14/25), brought under the 2007 China–Korea BIT — the first ISDS claim against China to reach an award. The tribunal did not reach the merits of the underlying expropriation claim: it dismissed the claim as time-barred under the BIT's three-year limitation provision, a reminder that the treaty's time limits are jurisdictional and operate independently of the merits. The small case count means a claimant should not assume settled practice in either direction; each treaty and each claim is argued from its own text.

How to Assess a Prospective Claim

1. Identify the applicable treaty — the BIT or investment chapter between the investor's home state and China, and confirm it is in force.
2. Read the consent clause — is it a first-generation (expropriation compensation only) or second-generation (any investment dispute) BIT?
3. Check the ICSID/UNCITRAL options — which fora the treaty offers, and whether the Article 25(4) notification restricts the ICSID route.
4. Run the procedural filters — fork-in-the-road, cooling-off, and the limitation period, computed carefully.
5. Plan enforcement — an award is only as good as its recognition, so map the enforcement route from day one. See Enforcing Foreign Arbitral Awards in China and China's Arbitration Law (2026): A Guide for Foreign Companies.

How Tianni Law Firm Can Help

Tianni Law Firm (江苏天倪律师事务所), based in Nanjing, Jiangsu, advises foreign investors on cross-border dispute resolution, including treaty-based claims and enforcement. Our work includes mapping the applicable BIT and its consent clause, evaluating jurisdiction and time-bar exposure, coordinating with co-counsel in ICSID or UNCITRAL proceedings, and enforcing awards in China. This article is general information, not legal advice; treaty texts, accession instruments and the operative limitation periods should be verified against the official sources before any filing.