Press Release

DBRS Morningstar Upgrades and Confirms Ratings on Cartesian Residential Mortgages Blue S.A.

RMBS

May 12, 2023

DBRS Ratings GmbH (DBRS Morningstar) took the following rating actions on the notes issued by Cartesian Residential Mortgages Blue S.A. (the Issuer):

-- Class A Notes confirmed at AAA (sf)
-- Class B Notes confirmed at AAA (sf)
-- Class C Notes upgraded to AAA (sf) from AA (high) (sf)
-- Class D Notes confirmed at AA (high) (sf)
-- Class E Notes upgraded to AA (sf) from AA (low) (sf)

The ratings on the Class A, Class B, and Class C Notes address the timely payment of interest and the ultimate repayment of principal on or before the legal final maturity date in July 2044. The ratings on the Class D and Class E Notes address the ultimate payment of interest and principal, and the timely payment of interest when they become the senior-most class of notes outstanding.

The rating actions follow an annual review of the transaction and are based on the following analytical considerations:
-- Portfolio performance, in terms of delinquencies, defaults, and losses, as of the April 2023 payment date.
-- Portfolio default rate (PD), loss given default (LGD), and expected loss assumptions on the remaining receivables.
-- Current available credit enhancement to the notes to cover the expected losses at their respective rating levels.

The Issuer is a securitisation of first- and subsequent-ranking Dutch residential mortgage loans secured over properties located in the Netherlands. The mortgages were originated by GE Artesia Bank through Quion 10 B.V., Ember Hypotheken 1 B.V., and Ember Hypotheken 2 B.V. The portfolio is serviced by Ember VRM, with Quion Hypotheekbemiddeling B.V., Quion Hypotheekbegeleiding B.V., and Quion Services B.V acting as the subservicers.

PORTFOLIO PERFORMANCE
As of 31 March 2023, loans two to three months in arrears represented 0.3% of the outstanding portfolio balance, up from 0.0% in April 2022. Loans more than three months in arrears represented 0.0% of the outstanding portfolio balance, down from 0.2% in April 2022. The cumulative default ratio was 0.0%.

PORTFOLIO ASSUMPTIONS AND KEY DRIVERS
DBRS Morningstar conducted a loan-by-loan analysis of the remaining pool of receivables and updated its base case PD and LGD assumptions at the B (sf) rating level to 3.0% and 9.9%, respectively.

CREDIT ENHANCEMENT
As of the April 2023 payment date, credit enhancement to the Class A, Class B, Class C, Class D, and Class E Notes was 21.1%, 17.5%, 12.7%, 8.1%, and 5.0%, respectively, up from 18.4%, 15.3%, 11.1%, 7.1%, and 4.3%, respectively, in April 2022. Credit enhancement consists of subordination of the junior notes.

The transaction benefits from an amortising Senior Reserve Fund, which covers senior fees, senior swap payments, and interest on the Class A and Class B Notes. It is currently funded to its target level of EUR 1.1 million, equal to 0.9% of the outstanding collateral balance. The transaction also consists of separate nonamortising Class C, Class D, and Class E Reserve Funds, which cover interest payments on the Class C, Class D, and Class E Notes, respectively. The Class C, Class D, and Class E Reserve Funds are each funded to their target level of EUR 0.7 million, equal to 0.3% of the original collateral balance.

Citibank Europe plc - Luxembourg Branch (Citibank) acts as the account bank for the transaction. Based on the DBRS Morningstar private rating of Citibank, the downgrade provisions outlined in the transaction documents, and other mitigating factors inherent in the transaction structure, DBRS Morningstar considers the risk arising from the exposure to the account bank to be consistent with the rating assigned to the Class A Notes, as described in DBRS Morningstar's "Legal Criteria for European Structured Finance Transactions" methodology.

NatWest Markets Plc acts as the swap counterparty for the transaction. DBRS Morningstar's public Long-Term Critical Obligations Rating of NatWest Markets Plc at A (high) is consistent with the First Rating Threshold as described in DBRS Morningstar's "Derivative Criteria for European Structured Finance Transactions" methodology.

ENVIRONMENTAL, SOCIAL, GOVERNANCE CONSIDERATIONS
Social (S) Factors
DBRS Morningstar considers that the Nationale Hypotheek Garantie (NHG) guarantee which is backing 1.7% of the current collateral pool is a relevant social factor (Social Impact of Product & Services) as outlined in the “DBRS Morningstar Criteria: Approach to Environmental, Social, and Governance Risk Factors in Credit Ratings”. DBRS Morningstar assumed reduced loss severity for loans backed by an NHG guarantee as outlined in its “European RMBS Insight: Dutch Addendum” methodology. This is credit positive, but does not materially affect the rating given the limited portion of NHG-backed loans in the collateral pool. Please also refer to https://www.dbrsmorningstar.com/research/366268/nhg-a-dutch-loan-guarantee-program-that-is-both-socially-supportive-and-credit-positive for more details.

There were no Environmental/Governance factors that had a significant or relevant impact on the credit analysis.

A description of how DBRS Morningstar considers ESG factors within the DBRS Morningstar analytical framework can be found in the “DBRS Morningstar Criteria: Approach to Environmental, Social, and Governance Risk Factors in Credit Ratings” at: https://www.dbrsmorningstar.com/research/396929/dbrs-morningstar-criteria-approach-to-environmental-social-and-governance-risk-factors-in-credit-ratings.

DBRS Morningstar analysed the transaction structure in Intex DealMaker.

Notes:
All figures are in euros unless otherwise noted.

The principal methodology applicable to the ratings is the “Master European Structured Finance Surveillance Methodology” (7 February 2023), https://www.dbrsmorningstar.com/research/409485/master-european-structured-finance-surveillance-methodology

Other methodologies referenced in this transaction are listed at the end of this press release. These may be found at: https://www.dbrsmorningstar.com/about/methodologies.

DBRS Morningstar has applied the principal methodology consistently and conducted a review of the transaction in accordance with the principal methodology.

A review of the transaction legal documents was not conducted as the legal documents have remained unchanged since the most recent rating action.

For a more detailed discussion of the sovereign risk impact on Structured Finance ratings, please refer to “Appendix C: The Impact of Sovereign Ratings on Other DBRS Morningstar Credit Ratings” of the “Global Methodology for Rating Sovereign Governments” at: https://www.dbrsmorningstar.com/research/401817/global-methodology-for-rating-sovereign-governments.

The DBRS Morningstar Sovereign group releases baseline macroeconomic scenarios for rated sovereigns. DBRS Morningstar analysis considered impacts consistent with the baseline scenarios as set forth in the following report: https://www.dbrsmorningstar.com/research/384482/baseline-macroeconomic-scenarios-application-to-credit-ratings.

The sources of data and information used for these ratings include investor reports provided by Intertrust Administrative Services B.V., and loan-level data provided by the European DataWarehouse GmbH.

DBRS Morningstar did not rely upon third-party due diligence in order to conduct its analysis.

At the time of the initial ratings, DBRS Morningstar was supplied with third-party assessments. However, this did not impact the rating analysis.

DBRS Morningstar considers the data and information available to it for the purposes of providing these ratings to be of satisfactory quality.

DBRS Morningstar does not audit or independently verify the data or information it receives in connection with the rating process.

The last rating action on this transaction took place on 12 May 2022, when DBRS Morningstar confirmed its ratings on the Class A, Class B, and Class C Notes at AAA (sf), AAA (sf), and AA (high) (sf), respectively, and upgraded its ratings on the Class D and Class E Notes to AA (high) (sf) and AA (low) (sf), respectively, from AA (low) (sf) and A (low) (sf), respectively.

Information regarding DBRS Morningstar ratings, including definitions, policies and methodologies is available at www.dbrsmorningstar.com.

Sensitivity Analysis: To assess the impact of changing the transaction parameters on the ratings, DBRS Morningstar considered the following stress scenarios as compared with the parameters used to determine the ratings (the Base Case):

-- DBRS Morningstar expected a lifetime base case PD and LGD for the pool based on a review of the current assets. Adverse changes to asset performance may cause stresses to base case assumptions and therefore have a negative effect on credit ratings.
-- The base case PD and LGD of the current pool of loans for the Issuer at the B (sf) rating level are 3.0% and 9.9%, respectively.
-- The risk sensitivity overview below illustrates the ratings expected if the PD and LGD increase by a certain percentage over the base case assumption. For example, if the LGD increases by 50%, the rating of the Class A Notes would be expected to remain at AAA (sf), assuming no change in the PD. If the PD increases by 50%, the rating of the Class A Notes would be expected to remain at AAA (sf), assuming no change in the LGD. Furthermore, if both the PD and LGD increase by 50%, the rating of the Class A Notes would be expected to remain at AAA (sf).

Class A Notes Risk Sensitivity:
-- 25% increase in LGD, expected rating of AAA (sf)
-- 50% increase in LGD, expected rating of AAA (sf)
-- 25% increase in PD, expected rating of AAA (sf)
-- 50% increase in PD, expected rating of AAA (sf)
-- 25% increase in PD and 25% increase in LGD, expected rating of AAA (sf)
-- 25% increase in PD and 50% increase in LGD, expected rating of AAA (sf)
-- 50% increase in PD and 25% increase in LGD, expected rating of AAA (sf)
-- 50% increase in PD and 50% increase in LGD, expected rating of AAA (sf)

Class B Notes Risk Sensitivity:
-- 25% increase in LGD, expected rating of AAA (sf)
-- 50% increase in LGD, expected rating of AAA (sf)
-- 25% increase in PD, expected rating of AAA (sf)
-- 50% increase in PD, expected rating of AAA (sf)
-- 25% increase in PD and 25% increase in LGD, expected rating of AAA (sf)
-- 25% increase in PD and 50% increase in LGD, expected rating of AAA (sf)
-- 50% increase in PD and 25% increase in LGD, expected rating of AAA (sf)
-- 50% increase in PD and 50% increase in LGD, expected rating of AAA (sf)

Class C Notes Risk Sensitivity:
-- 25% increase in LGD, expected rating of AAA (sf)
-- 50% increase in LGD, expected rating of AAA (sf)
-- 25% increase in PD, expected rating of AAA (sf)
-- 50% increase in PD, expected rating of AAA (sf)
-- 25% increase in PD and 25% increase in LGD, expected rating of AAA (sf)
-- 25% increase in PD and 50% increase in LGD, expected rating of AAA (sf)
-- 50% increase in PD and 25% increase in LGD, expected rating of AAA (sf)
-- 50% increase in PD and 50% increase in LGD, expected rating of AAA (sf)

Class D Notes Risk Sensitivity:
-- 25% increase in LGD, expected rating of AA (high) (sf)
-- 50% increase in LGD, expected rating of AA (high) (sf)
-- 25% increase in PD, expected rating of AA (high) (sf)
-- 50% increase in PD, expected rating of AA (high) (sf)
-- 25% increase in PD and 25% increase in LGD, expected rating of AA (high) (sf)
-- 25% increase in PD and 50% increase in LGD, expected rating of AA (high) (sf)
-- 50% increase in PD and 25% increase in LGD, expected rating of AA (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected rating of AA (low) (sf)

Class E Notes Risk Sensitivity:
-- 25% increase in LGD, expected rating of AA (sf)
-- 50% increase in LGD, expected rating of A (high) (sf)
-- 25% increase in PD, expected rating of AA (sf)
-- 50% increase in PD, expected rating of A (high) (sf)
-- 25% increase in PD and 25% increase in LGD, expected rating of A (high) (sf)
-- 25% increase in PD and 50% increase in LGD, expected rating of A (high) (sf)
-- 50% increase in PD and 25% increase in LGD, expected rating of A (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected rating of A (low) (sf)

For further information on DBRS Morningstar historical default rates published by the European Securities and Markets Authority (ESMA) in a central repository, see: http://cerep.esma.europa.eu/cerep-web/statistics/defaults.xhtml. For further information on DBRS Morningstar historical default rates published by the Financial Conduct Authority (FCA) in a central repository, see https://data.fca.org.uk/#/ceres/craStats.

These ratings are endorsed by DBRS Ratings Limited for use in the United Kingdom.

Lead Analyst: Shalva Beshia, Assistant Vice President
Rating Committee Chair: Alfonso Candelas, Senior Vice President
Initial Rating Date: 29 March 2019

DBRS Ratings GmbH
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Tel. +49 (69) 8088 3500
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Amtsgericht Frankfurt am Main, HRB 110259

The rating methodologies used in the analysis of this transaction can be found at: https://www.dbrsmorningstar.com/about/methodologies.

A description of how DBRS Morningstar analyses structured finance transactions and how the methodologies are collectively applied can be found at https://www.dbrsmorningstar.com/research/278375.

For more information on this credit or on this industry, visit www.dbrsmorningstar.com or contact us at info@dbrsmorningstar.com.

ALL MORNINGSTAR DBRS RATINGS ARE SUBJECT TO DISCLAIMERS AND CERTAIN LIMITATIONS. PLEASE READ THESE DISCLAIMERS AND LIMITATIONS AND ADDITIONAL INFORMATION REGARDING MORNINGSTAR DBRS RATINGS, INCLUDING DEFINITIONS, POLICIES, RATING SCALES AND METHODOLOGIES.

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