Two Clocks Running: The 49kW enforcement trigger and the 2027 Battery Passport Cliff as Unpriced Event risks in Chinese EV EU Exposure - Document 2 of 3

The market consensus on Chinese OEM EU exposure treats anti-subsidy tariff risk as the primary analytical variable. This practitioner working note argues that this framework is incomplete and produces a mispriced thesis. Two independent compliance events - the January 1 2027 AFIR enforcement trigger and the February 18 2027 EU Battery Regulation passport compliance cliff - are legislative, fixed, and subject to no resolution mechanism. They run regardless of how the tariff negotiation resolves. Conflating tariff risk and compliance risk as a single category is the analytical error this brief corrects. The note develops explicit directional investment calls for five named Chinese players like BYD, CATL, Geely, NIO, and SAIC - with a bear case stress-test for each verdict. It includes an illustrative unit economics calculation of SAIC's annualised EU tariff burden based on public sales data, a three-path tariff scenario analysis covering the base case tariff regime, the price undertaking upside scenario, and the WTO escalation downside, and a five-trigger position monitoring framework designed for use in a weekly position review by hedge fund and long/short equity analysts. The note additionally addresses the price undertaking mechanism - the negotiated alternative to tariffs under EU Anti-Subsidy Regulation 2016/1037 Article 13, and its asymmetric implications for different Chinese OEM business models. The mechanism that improves BYD's EU margin structure simultaneously destroys SAIC's price-based competitive rationale. That asymmetry is an investment insight independent of whether an undertaking is ultimately accepted. This brief is intentionally scoped as a decision-orientation tool identifying the right analytical framework, the key variables, and the observable trigger signals. Position-specific financial modelling and regulatory enforcement timeline verification require direct expert engagement. This is Document 2 of a three-part practitioner series on Chinese EV and EVSE EU regulatory exposure. Document 1 - Unpriced: Three Due Diligence Gaps in CPO Acquisitions with Chinese EVSE Hardware Exposure - covers PE acquisition due diligence implications (DOI: 10.5281/zenodo.20023903).